Social engagement and relationships Archive

Social media can connect people across the globe, with a potential audience of millions of users. But no matter how many likes a post gets, it can feel like it's not enough, opening users — particularly young people — to potential mental health issues, and raising the question of whether the government should impose regulations on social media companies.

While the FDA has authorized the Pfizer/BioNTech COVID-19 vaccine for children ages 5 to 11, and the CDC recommends it, parents are still likely to have questions about the vaccine and how COVID-19 affects younger children.

The number of people in the US with Alzheimer's disease is expected to climb drastically over the coming decades, and two-thirds of those people will be women. Understanding factors that happen earlier in life, and how they impact the brain later, is critical for developing strategies to prevent this public health crisis. Studies are examining the ways menopause affects the brain and how to maintain memory.

As the holiday season approaches again, the desire to gather is tempered by lingering concerns about COVID-19. Rapid COVID-19 tests could provide some reassurance if testing is done as guests arrive at a host's home, though it's important to be aware of the limitations of this approach, including cost, availability, reliability, and how results are obtained.

Body mass index (BMI) is determined by a combination of one's weight and height. A BMI of 18.5 to 24.9 represents a healthy weight, 25 to 29.9 is overweight, and 30 or greater is obese. BMI is a better measure of health than just weight, but it still has its flaws. It doesn't assess body fat as well in older folks as it does in younger adults. And it doesn't distinguish between fat that's in the belly from fat in other places, like the hips. For this reason, measurements comparing waist to hip size are also used.

Past research hinted at a link between heart disease and a high intake of calcium from supplements, but more recent analyses have not found a connection between the two.