The commentary said that switching from bottled to filtered tap water alone could reduce microplastic intake from 90,000 to 4,000 particles per year.

The hormone insulin plays a key role in the development of obesity. Up until recently, there have been numerous signs indicating insulin causes neurodegenerative and metabolic disorders, especially in the brain.

In the first study, a team of researchers from France studied data from nearly 64,000 French residents who were followed for up to 30 months. Their findings, published in the journal Infectious Diseases, showed that patients who were hospitalised due to Covid have experienced a higher rate of deaths from any cause -- 5,218 per 100,000 people.

To assess whether exercise might reduce this disparity, the team analysed data from two posttreatment trials in patients with stage 3 colon cancer. A total of 2,875 patients self-reported physical activity after cancer surgery and chemotherapy.

With social isolation, health concerns and economic uncertainty, fear and anxiety have become a daily reality for many, said the study published in the Journal of Research in Personality.

“This adds to a growing body of evidence that some exercise is better than nothing, especially with regard to an aging-related disorder that affects the brain that currently has no cure,” Wanigatunga added.

In a mice study, researchers from the Pennsylvania State University in the US showed that the effects of drugs on the body -- both medication and misused substances -- change as per age.