Is COVID reinfection harmful? Dr. Mallika Marshall answers your questions
Dr. Mallika Marshall says having COVID-19 more than once could increase your risk of heart, lung, and kidney problems as well as long COVID symptoms.
Men who lift heavy objects at work have more sperm, Brigham study claims
Men who frequently lifted heavy objects at work had higher sperm counts, according to research at Brigham and Women's Hospital
Fitness trackers could interfere with pacemakers and defibrillators, study says
Researchers found that the tiny amount of electrical current delivered to the body could potentially interfere with pacemakers and defibrillators.
Genes may impact ability to do math, researchers find
Our ability to do math may lie in our genes.
Harvard researchers help create technology to grow living human ovaries
Researchers from Harvard say they have made a potentially game-changing discovery.
Black Americans more likely to to get inadequate night's sleep, study finds
A recent study from Yale University found that Black Americans are more likely to sleep less than seven hours a day compared to whites and other non-white groups.
How many COVID vaccinations do you need?
Dr. Mallika Marshall is answering your medical questions.
ER on wheels hopes to cut down on emergency room overcrowding
As hospitals struggle to admit patients into overcrowded ERs, a company is bringing back the at-home house call.
COVID may be tied to greater risk of diabetes, researchers say
COVID-19 may be tied to a greater risk of diabetes, new research suggests.
Nightly eye drop could help keep kids out of glasses
A recent study discovered that a nightly eye drop may keep kids out of glasses.
How do I talk about school shootings or threats with my children?
Dr. Mallika Marshall has some helpful advice for parents and children dealing with the anxiety and feelings created by these events.
Drinking coffee could help reduce high blood pressure
Researchers in Italy found that people who drank two cups of coffee had lower blood pressure than non-coffee drinkers.
Why common cold symptoms may feel worse after the pandemic
For many people who have gotten a cold in the past few months, the symptoms seem to be much worse than before the pandemic.
New CDC study finds a growing mental health crisis among teen girls
Teenage girls may be experiencing more sadness and violence in this country, according to new statistics.
Vitamin D supplements may reduce risk of type 2 diabetes, researchers say
Vitamin D supplements may reduce the risk of type 2 diabetes in some people, according to researchers at Tufts Medical Center.