Month: January 2023

I recently saw a car vanity plate that read “LBODOC” (as in elbow doc). The driver — probably an orthopedic doctor or arthritis specialist — was clearly a fan of the elbow, an unassuming joint and a surprisingly central player in many daily tasks. I could relate: throughout my medical career, the elbow has been my favorite joint.

Here’s why we should give praise to elbows and do all we can to protect them.

What if we didn’t have elbows?

Let’s face it: the human experience would be quite different without elbows.

Imagine your arm without a joint that bends at the elbow. You’d be unable to easily feed yourself, put on makeup, shave your face, or brush your teeth. It’d be tough to get dressed or throw a ball without elbows. And, importantly, wiping yourself after using the bathroom would be nearly impossible.

Yet, when it comes to joints and joint disease, we hear little about elbows; hips and knees get most of the attention. So, let’s consider for a moment what the lowly elbow does and why it deserves more credit.

How do your elbows work?

Three bones come together at the elbow joint: the humerus, which is in the upper arm, and two long bones called the ulna and radius in the lower arm.

Your elbow has two main motions:

• Flexing and straightening. Flexing your arm allows you to bring your hand toward your body (flexion), which you do when bringing food to your mouth or putting your hands on your hips. Straightening your arm (extension) allows such motions as putting your arm in a shirt sleeve or reaching your toes.
• Turning up and down. You can also flip your palms from facing the ceiling (supination) to facing the floor (pronation). These motions are important for many common movements, such as turning a key or a doorknob.

Bumping your elbow: Why is it called the funny bone?

Probably for two reasons:

• The humerus in the upper arm sounds just like the word humorous, meaning funny.
• Bumping your elbow often puts pressure on the ulnar nerve, since it’s located between the bones of the joint. Pressure on this nerve can cause a funny tingling sensation that runs down your arm.

Elbow trouble: Four well-known problems — and a surprising fifth

Like so many overlooked and underappreciated things, most people think little about their elbows until something goes wrong. Here are some of the most common elbow problems:

• Arthritis. Several types of arthritis can affect the elbow, including rheumatoid arthritis, psoriatic arthritis, and gout. Interestingly, the most common type of arthritis, osteoarthritis, doesn’t usually affect the elbow unless there’s been prior damage to the joint.
• Bursitis. The bursa is a saclike structure that surrounds the tip of the elbow. Bursitis develops when it becomes swollen or inflamed, due to infection, gout, or bleeding.
• Tendonitis. Tendon inflammation (tendonitis) may develop on the inside part of the elbow (called “golfer’s elbow”) or the outside (called “tennis elbow”). Despite these names, you don’t have to play any particular sport to develop elbow tendonitis.
• Trauma. Everyday activities and athletic pursuits put the elbow at risk. A bike accident, falling off a skateboard, or just tripping on a curb and falling onto your arm can cause significant elbow injuries. These include ligament damage, broken bones, or bursitis.

And the surprising fifth problem? Cell phone-induced nerve irritation: holding your elbow bent for a long time can lead to “cell phone elbow” due to pressure on the ulnar nerve. This can cause numbness and pain down the arm. The solution? Put the phone down — or at least go hands-free.

How can you protect your elbows?

Considering all our elbows do for us, we need to do our best to protect them. That means:

• Wear elbow protectors when engaging in activities likely to injure the elbows (like skateboarding or roller blading).
• Learn proper technique for activities that can stress the elbow like racquet sports, baseball, weight training, or repetitive motions in carpentry and other types of work. For example, a trainer or coach can help you improve your tennis stroke to avoid overstressing the elbow joint and its tendons or ligaments.
• Use appropriate equipment. For example, avoid using a tennis racquet that’s too heavy for you.
• Train well. Strengthening forearm muscles and stretching can help avoid golfer’s elbow.

The bottom line

As the junction between hand and shoulder, our elbows play a pivotal role in everyday function. It’s high time we recognized them for what they do for us. Even if the elbow isn’t your favorite joint — as it is for me — perhaps it should be in your top five. After all, think of all the things you couldn’t do without them.

About the Author

Robert H. Shmerling, MD, Senior Faculty Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Robert H. Shmerling is the former clinical chief of the division of rheumatology at Beth Israel Deaconess Medical Center (BIDMC), and is a current member of the corresponding faculty in medicine at Harvard Medical School. … See Full Bio View all posts by Robert H. Shmerling, MD

Experiencing discrimination in the workplace — where many adults spend one-third of their time, on average — may be harmful to your heart health.

A 2023 study in the Journal of the American Heart Association found that people who reported high levels of discrimination on the job were more likely to develop high blood pressure than those who reported low levels of workplace discrimination.

Workplace discrimination refers to unfair conditions or unpleasant treatment because of personal characteristics — particularly race, sex, or age.

How can discrimination affect our health?

“The daily hassles and indignities people experience from discrimination are a specific type of stress that is not always included in traditional measures of stress and adversity,” says sociologist David R. Williams, professor of public health at the Harvard T.H. Chan School of Public Health.

Yet multiple studies have documented that experiencing discrimination increases risk for developing a broad range of factors linked to heart disease. Along with high blood pressure, this can also include chronic low-grade inflammation, obesity, and type 2 diabetes.

More than 25 years ago, Williams created the Everyday Discrimination Scale. This is the most widely used measure of discrimination’s effects on health.

Who participated in the study of workplace discrimination?

The study followed a nationwide sample of 1,246 adults across a broad range of occupations and education levels, with roughly equal numbers of men and women.

Most were middle-aged, white, and married. They were mostly nonsmokers, drank low to moderate amounts of alcohol, and did moderate to high levels of exercise. None had high blood pressure at the baseline measurements.

How was discrimination measured and what did the study find?

The study is the first to show that discrimination in the workplace can raise blood pressure.

To measure discrimination levels, researchers used a test that included these six questions:

• How often do you think you are unfairly given tasks that no one else wanted to do?
• How often are you watched more closely than other workers?
• How often does your supervisor or boss use ethnic, racial, or sexual slurs or jokes?
• How often do your coworkers use ethnic, racial, or sexual slurs or jokes?
• How often do you feel that you are ignored or not taken seriously by your boss?
• How often has a coworker with less experience and qualifications gotten promoted before you?

Based on the responses, researchers calculated discrimination scores and divided participants into groups with low, intermediate, and high scores.

• After a follow-up of roughly eight years, about 26% of all participants reported developing high blood pressure.
• Compared to people who scored low on workplace discrimination at the start of the study, those with intermediate or high scores were 22% and 54% more likely, respectively, to report high blood pressure during the follow-up.

How could discrimination affect blood pressure?

Discrimination can cause emotional stress, which activates the body’s fight-or-flight response. The resulting surge of hormones makes the heart beat faster and blood vessels narrow, which causes blood pressure to rise temporarily. But if the stress response is triggered repeatedly, blood pressure may remain consistently high.

Discrimination may arise from unfair treatment based on a range of factors, including race, gender, religious affiliation, or sexual orientation. The specific attribution doesn’t seem to matter, says Williams. “Broadly speaking, the effects of discrimination on health are similar, regardless of the attribution,” he says, noting that the Everyday Discrimination Scale was specifically designed to capture a range of different forms of discrimination.

What are the limitations of this study?

One limitation of this recent study is that only 6% of the participants were nonwhite, and these individuals were less likely to take part in the follow-up session of the study. As a result, the study may not have fully or accurately captured workplace discrimination among people from different racial groups. In addition, blood pressure was self-reported, which may be less reliable than measurements directly documented by medical professionals.

What may limit the health impact of workplace discrimination?

At the organizational level, no studies have directly addressed this issue. Preliminary evidence suggests that improving working conditions, such as decreasing job demands and increasing job control, may help lower blood pressure, according to the study authors. In addition, the American Heart Association recently released a report, Driving Health Equity in the Workplace, that aims to address drivers of health inequities in the workplace.

Encouraging greater awareness of implicit bias may be one way to help reduce discrimination in the workplace. Implicit bias refers to the unconscious assumptions and prejudgments people have about groups of people that may underlie some discriminatory behaviors. You can explore implicit biases with these tests, which were developed at Harvard and other universities.

On an individual level, stress management training can reduce blood pressure. A range of stress-relieving strategies may offer similar benefits. Regularly practicing relaxation techniques or brief mindfulness reflections, learning ways to cope with negative thoughts, and getting sufficient exercise can help.

About the Author

Julie Corliss, Executive Editor, Harvard Heart Letter

Julie Corliss is the executive editor of the Harvard Heart Letter. Before working at Harvard, she was a medical writer and editor at HealthNews, a consumer newsletter affiliated with The New England Journal of Medicine. She … See Full Bio View all posts by Julie Corliss

About the Reviewer

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing

Dr. Howard LeWine is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio View all posts by Howard E. LeWine, MD

Here’s a new fact about spring, summer, fall, and sometimes even winter, now that climate change has blurred seasonal boundaries: sizzling heat may be on the way, or currently blanketing your community.

High temperatures stress the body, leading to thousands of heat-related illnesses and deaths every year in the US. Creating a personal heat plan can help you stay safe when the heat index soars.

Caleb Dresser, MD, MPH, is the health care solutions lead for C-CHANGE, the Center for Climate Health and the Global Environment at the Harvard T.H. Chan School of Public Health, and an emergency medicine doctor at Harvard-affiliated Beth Israel Deaconess Medical Center. Below we interview him about who, how, and why heat harms. Then we’ll help you create your personal heat safety plan.

Interview edited for clarity

Who is especially vulnerable during hot weather?

High temperatures can affect anyone. But some people — children, outdoor workers, people who are pregnant or have health problems or disabilities, and older people — are more likely to experience harm when temperatures rise. For example:

• Young children, especially babies, have less physical capacity to deal with very high temperatures.
• People working outdoors may not have access to shade and could be performing physically intensive labor. They need adequate hydration, adequate breaks, and access to a cool space during break time, as OSHA guidelines spell out.
• People with chronic medical conditions, such as kidney disease or heart disease, may have difficulty adapting physiologically to hot weather, or may be more susceptible to its health impacts.
• And some people living with disabilities or certain neurological conditions may have difficulty with thermoregulation — that is, controlling the temperature of their bodies — or may not be able to take actions that keep them safe, such as taking off layers or moving to a cool area.

Which weather patterns create dangerous levels of heat?

Dangerous heat is the result of both high temperatures and high humidity, which interfere with our ability to cool off by sweating. In dry areas, extremely hot temperatures can be dangerous on their own.

Danger zones vary across the United States and around the world. But hospital use and deaths rise once we get above threshold temperatures. The threshold varies in different places depending on whether bodies, cultures, and architecture are adapted to heat.

For example, here in New England, where some people (particularly those of limited means) may not have access to air conditioning, we see increases in healthcare use and deaths at a lower temperature than in the American South, where people and organizations may be more used to dealing with hot weather.

When does hot weather become dangerous to our health?

Risk goes up the longer hot weather sticks around.

One hot day can put some people at risk. A stretch of several hot days in a row during a heat wave is particularly dangerous because it can overwhelm people’s ability to adapt. Eventually people run out of physiological reserves, leading to greater health harms and greater need for medical care.

Surprisingly, spring and early summer are particularly dangerous times because people and organizations aren’t as prepared for hot weather.

How to create your personal heat safety plan

Five key points to help you create a personal heat plan are below. Americares offers further information through heat tip sheets developed with the Harvard C-CHANGE team that are tailored to people in different health circumstances.

Planning is important because intense heat is occurring more often: a Climate Central analysis found 21 additional risky heat days, on average, for 232 out of 249 locations between 1970 and 2022.

• Stay ahead of hot weather. Check apps, websites, TV, or radio for updates on weather today and in coming days. If local weather alerts are available by phone or text, sign up.
• Have a cooling plan. When temperatures soar, you need to spend as much time as possible in cool spaces. Plan options if your home is likely to be too hot and unsafe to stay in. You may be able to stay with a neighbor or family member who has air conditioning until a heat wave passes. Many cities and towns have neighborhood splash pads for children, and open cooling centers or air-conditioned libraries, public buildings, or community centers to everyone — sometimes even overnight. Spending time in air-conditioned businesses or malls, or in a shady green space like a park, may help too.
• Sip plenty of fluids. Water is the best choice. Skip sugary drinks and avoid caffeine or alcohol.
• Use fans correctly. Fans help if surrounding air is relatively cool. If air temperatures are very high, it’s important to dampen your clothes or skin to help keep your body from overheating, and move to a cooler location, if possible.
• Know your personal risks and the signs of heat-related illness. If you have health problems or disabilities, or take certain medicines such as diuretics, talk to your doctor about the best ways for you to cope with heat. It’s also essential to know the signs of heat-related illnesses, which range from heat rash and sunburn to heat cramps, heat exhaustion, and heat stroke. This chart from the Centers for Disease Control and Prevention describes the signs to look for and what you can do, particularly when heat becomes an emergency.

About the Author

Francesca Coltrera, Editor, Harvard Health Blog

Francesca Coltrera is editor of the Harvard Health Blog, and a senior content writer and editor for Harvard Health Publishing. She is an award-winning medical writer and co-author of Living Through Breast Cancer and The Breast … See Full Bio View all posts by Francesca Coltrera

About the Reviewer

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing

Dr. Howard LeWine is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio View all posts by Howard E. LeWine, MD