Diseases & Conditions Archive

Articles

Hit hard by POTS

Postural orthostatic tachycardia syndrome (POTS) affects up to a million Americans, more than three-quarters of whom are women. A main feature of POTS is an intolerance to being upright. Symptoms include heart rate spikes, palpitations, dizziness, and fatigue. Risk factors include recent viral infection, surgery, concussion, or a long period of inactivity. POTS symptoms can be managed through exercising, drinking more fluids, increasing salt intake, wearing compression garments, and using counter-pulsation poses.

Not just another headache

Headaches happen to people every day, and about 4% of Americans report being bothered a great deal by them in the past three months. Only a tiny percentage of headaches indicate a serious underlying problem. Red-flag signs include headaches occurring with other symptoms; new headaches in people over 50; headaches that get worse with exercise, sex, coughing, or lying down; and "thunderclap" headaches that involve rapidly worsening head pain. People experiencing these signs should seek prompt medical attention.

When are nosebleeds a problem?

Nosebleeds are common, and dry air is the most prevalent cause. Other triggers include allergies, blood-thinning medications, or a deviated septum. People with frequent, heavy nosebleeds may need evaluation for a more serious underlying condition.

Sedentary work may contribute to insomnia

A 2025 study suggested that people with sedentary jobs are at higher risk of developing insomnia, which can persist for many years.

Diabetes drugs may improve risks for some conditions, but worsen others

A 2025 analysis suggested that GLP-1 medications used for diabetes and weight loss are associated with lower risks for an array of conditions, but that they increase risks for several others.

Do you really need bunion surgery?

Surgery is usually warranted when bunion pain becomes disabling, a skin ulcer develops, or it's necessary to prevent a bunion from dislocating the second toe. However, recovery can be long and painful, and there's no guarantee that bunions won't come back. Prior to surgery, it might help to use strategies that reduce bunion pain, such as adding cushioning to shoes, stretching shoes where a bunion rubs against them, getting roomier shoes or shoes made with stretchy fabrics, and using toe spacers.

Don't overlook blood pressure control when you have glaucoma

Blood pressure problems might contribute to glaucoma, a condition that damages the optic nerves and causes vision loss. If blood pressure is too low, for example, blood flow to the optic nerves might decrease. That could deprive the optic nerves of oxygen and nutrients, resulting in nerve damage. High blood pressure might also reduce blood flow to the optic nerves, by damaging the blood vessels that supply the nerves. If glaucoma gets worse despite treatment, blood pressure should be considered as a factor.

Will diverticulitis heal on its own?

Diverticula—little pockets that develop in the lining of the colon—can become inflamed or infected and cause bloating, diarrhea, constipation, and pain in the lower left abdomen. The problem, called diverticulitis, might go away on its own, but first-time sufferers should report symptoms to the doctor right away. People with a history of diverticulitis can likely wait a day or two, but then call a doctor if symptoms don't improve. Treatment for diverticulitis ranges from rest, a clear liquid diet, and antibiotics to hospitalization or surgery.

Measles is making a comeback: Can we stop it?

In the US, widespread vaccination halted the ongoing spread of measles more than 20 years ago, but recent outbreaks have flared in over 20 US states, leading to hospitalizations and at least two deaths. Measles is highly preventable — here's what you need to know.

Counting steps is good — is combining steps and heart rate better?

Monitoring daily step count can encourage people to be more active. When it comes to assessing fitness or risk for major illnesses, though, is a new measurement that combines both average steps and heart rate better?

Free Healthbeat Signup

Get the latest in health news delivered to your inbox!

Sign Up
Harvard Health Publishing Logo

Thanks for visiting. Don't miss your FREE gift.

The Best Diets for Cognitive Fitness, is yours absolutely FREE when you sign up to receive Health Alerts from Harvard Medical School

Sign up to get tips for living a healthy lifestyle, with ways to fight inflammation and improve cognitive health, plus the latest advances in preventative medicine, diet and exercise, pain relief, blood pressure and cholesterol management, and more.

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of the Best Diets for Cognitive Fitness.

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of the Best Diets for Cognitive Fitness.