Skip to main content

Healthy aging and longevity Archive

Articles

Does exercise really boost energy levels?

Exercise can create physical changes that help increase energy levels inside the body. In addition, it can induce better sleep at night, which helps people feel more energetic in the morning.

Do I need to take my blood pressure in both arms?

Taking blood pressure readings in both arms can help reveal potential heart risks.

Grill your way to better health

Grilled meat—in particular red meat—has garnered some negative attention from nutritionists in recent years, because in addition to its less-than-stellar nutritional profile, it’s been shown to generate potentially cancer-causing compounds when cooked over high heat. On the grill, the fat and protein in the meat produces harmful, potentially carcinogenic compounds called heterocyclic amines and polycyclic aromatic hydrocarbons. Better options are lean chicken and fish, and grilled vegetables.

Harvard study: Internet searches sometimes lead to the right diagnosis

A Harvard study published online March 29, 2021, by JAMA Network Open found that people who looked up health symptoms online were able to correctly diagnosis a condition about half the time.

Are toxins flushed out of the brain during sleep?

The glymphatic system is the brain's "waste management" system. It carries fresh fluid into the brain, mixes the fresh fluid with waste-filled fluid surrounding brain cells, and flushes the mix out of the brain and into the blood.

High-glycemic diets could lead to big health problems

A diet consisting primarily of foods high on the glycemic index—those with high amounts of quickly digestible carbohydrates—can increase a person’s risk of cardiovascular disease and early death, suggests a study that looked at almost 138,000 people around the world.

Sleeping five hours or less may raise dementia risk

Adults ages 65 and older who sleep less than five hours per night have almost double the risk of being diagnosed with dementia compared with those who sleep the recommended seven to nine hours.

How to hydrate

An estimated 40% of seniors are chronically underhydrated, and adults ages 65 and older have the highest hospital admission rates for dehydration. The main problem is that the sense of thirst diminishes with age. In addition, many people are not mindful about drinking water over the course of the day. People can increase their intake by setting up drinking routines, jazzing up drinking water, and increasing their intake of water-rich foods.

5 important blood tests beyond the basics

Five blood tests beyond basic blood work may be worth pursuing for older adults. For example, a test to determine one’s vitamin B12 level might be helpful, since older adults sometimes have trouble absorbing that vitamin. Likewise, older adults have less ability to absorb sunlight through the skin, which may lead to less production of vitamin D. Other blood tests to consider include those for HIV or hepatitis C infection, and a test to measure fasting blood sugar.

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 32-page gift worth $29.95.

PLUS, don’t miss out on your 25% off promo code.

Sign up to get tips for living a healthy lifestyle—You’ll discover powerful, research- backed strategies for health longevity drawn from Harvard Medical School experts—ways to eat for a longer life, build strength and flexibility to stay independent, protect your bones, heart, and brain as you age, and even cultivate the habits linked with “super-agers” who stay sharp and active well into their 80s and 90s—all delivered to your email box FREE.

Harvard Health Publishing Logo

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

Plus, get a FREE copy of Living Longer, Living Well!.

Harvard Health Publishing Logo

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

Plus, get a FREE copy of Living Longer, Living Well.