Harvard Health Content API

While some children have been attending school in-person throughout the pandemic, most have been learning remotely, or in a hybrid model. As more schools reopen for in-person learning, parents can ask key questions about their school district’s plans and help their children prepare to go back.

What can you safely do after receiving the COVID-19 vaccine? Many people are eager to resume normal activities and see their family and friends. Some situations are lower-risk than others, and whether or not the other people you will be interacting with have also been vaccinated matters, too.

Omega-3 fatty acids from fish and fish oil have been recommended by the American Heart Association for the past 20 years to reduce cardiovascular events in people who already have cardiovascular disease. But the results of studies of omega-3 supplements have been mixed, leaving both doctors and patients still wondering what to do.

Given the interest in CBD and the exploding popularity (and big business) of products that contain it, it was only a matter of time before new cannabinoids were discovered and commercialized. But many of these substances have been studied only in animals so far, meaning it is too soon to say if any of their potential benefits will apply to humans.

Trying to cut back on calories by drinking diet soda or flavored sparkling water may not help with weight loss, and some research suggests it may actually lead to weight gain. But why, and what are the alternatives?