Staying Healthy Archive

Articles

Can nail polish harm my nails?

Wearing nail polish does not harm nails. However, doing so for long periods can dry out the surface, prompting chalky, white patches to form. Removing nail polish with acetone-based products can also dry out the nails and surrounding skin.

Research highlights health benefits from cold-water immersions

While there are limited studies about the health benefits of cold-water immersions, a 2025 analysis found regular ice baths or cold showers may help reduce stress levels, improve sleep, and increase quality of life.

Getting the right diagnosis

Nearly one in five hospitalized adults is harmed or dies each year due to a diagnostic error. Diagnostic errors include a delay in diagnosis, a wrong diagnosis, or unclear communication about a diagnosis. Tricky-to-diagnose conditions include pneumonia, heart attack, stroke, sepsis, blood clots, and lung cancer. Women, minorities, and older adults may be more vulnerable to diagnostic mistakes. People can lower their risks of diagnostic errors by telling the doctor about their medications, taking a trusted companion to appointments, and seeking second opinions in cases of doubt.

Tick season is expanding: Protect yourself against Lyme disease

With ticks thriving in a wider geographic range, appearing earlier and sticking around later, it's important to stay vigilant about protecting yourself against ticks that cause Lyme disease and other illnesses. Learn some steps you can take to avoid tick bites.

Healthier planet, healthier people

Our health is intertwined with the health of planet Earth, and the impacts of climate change threaten our well-being. Collectively taking small steps like eating more plant-forward meals, using bikes or public transit, and even sharing our pledges can help move the needle in a positive direction.

Harvard Health Ad Watch: How direct-to-consumer ads hook us

Direct-to-consumer (DTC) drug ads promoting treatments for arthritis, cancer, heartburn, psoriasis, flagging memory, and more are all everywhere you look. All too often, the information shared is incomplete, biased, or confusing––here's what to watch out for and how to get the whole story when considering treatment options. 

New thinking on important blood tests

The approach to certain blood tests appears to be shifting. Doctors might stop ordering routine vitamin D screenings for healthy people younger than 75; they might order a one-time combination of lipoprotein(a), C-reactive protein, and LDL (bad) cholesterol tests as a way to predict future heart problems; and they might rely less on standard ranges designated as "normal" in a complete blood count (CBC) test, and instead focus more on comparing someone's latest CBC results to previous CBC tests.

4 ways your teeth and gums are changing

As people age, their teeth and gums can change. Examples include receding gums, shifting teeth, changing tooth color, and reduced tooth pain. These changes can be due to the wear and tear that comes with age, the development of disease, or natural changes in the components of tooth material. Dentists stress the importance of brushing and flossing teeth daily, getting teeth professionally cleaned twice a year, and talking to a dentist about solutions to dental problems.

Morning coffee habit linked to a longer life

In a 2025 study of 40,000 coffee drinkers followed for a decade, those who drank coffee in the morning were 16% less likely to die during the study period, compared to those who didn't drink coffee. The benefit didn't appear among those who drank coffee throughout the day.

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.

25 Gut Health Hacks is yours absolutely FREE when you sign up to receive health information from Harvard Medical School.

Sign up to get tips for living a healthy lifestyle, with ways to lessen digestion problems…keep inflammation under control…learn simple exercises to improve your balance…understand your options for cataract treatment…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 25 Gut Health Hacks.

Harvard Health Publishing Logo

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

Plus, get a FREE copy of 25 Gut Health Hacks.