What causes brain freeze?

“Brain freeze” happens when people eat ice cream or other cold treats, drastically dropping the temperature at the back of the mouth. This results in rapid changes in blood vessel size, sending pain signals to the brain. Brain freeze typically disappears within 30 seconds.

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Sowing the seeds of better health

About one in three Americans engages in gardening, and the activity became even more popular during the COVID pandemic. Research suggests gardening provides many physical and mental health benefits. It can boost movement, improve diet, fight illness, smooth mood, sharpen brain function, and strengthen social bonds. Gardeners should wear a hat and apply sunscreen to protect against sun exposure. They should also wear gloves to create a barrier against skin allergens on plants and bacteria or fungi in potting soil mixes.

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Better together: The many benefits of walking with friends

Going for a brisk walk with one or more friends has many health benefits. It’s a form of socializing, which is good for thinking skills and helps stave off loneliness, isolation, and many chronic diseases. Walking with others helps people stay accountable and stick to an exercise regimen, and motivates and challenges them to work harder. Plus, it’s safer to walk with buddies, who can all watch for hazards and call for help in an emergency.

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Harvard-led study: Yoga fights frailty

A 2022 study found that yoga may offer some protection against frailty. Participants who practiced yoga improved two markers of frailty—walking speed and the ability to get up from a chair—compared with people who didn’t practice yoga.

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Coping with recurring vertigo

For many people, attacks of vertigo recur periodically. The attacks are usually caused by a disorder of the balance (vestibular) system. Examples of balance disorders include benign paroxysmal positional vertigo (BPPV), cervical vertigo, Meniere’s disease, and vestibular migraine. Treatment for recurring vertigo involves getting the underlying cause under control; seeking physical therapy tailored to people with balance disorders; and (for people with BPPV) doing a particular maneuver to reposition loose debris in the ear canal.

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