Amino LP7—a supplement containing seven specific amino acids—can slow down brain degeneration in mice, suggesting that essential amino acids help preserve cognitive function with age.

Researchers found phthalates, a group of chemicals that are used to make plastics soft and are known to disrupt the endocrine system, and other plasticizers in popular fast food items.

Air pollution reduces sperm count in mice by causing inflammation in the brain. The brain has a direct line to the reproductive organs affecting fertility and sperm count under stressful conditions.

Older adults who studied a second language had significant cognitive improvements without becoming fluent, suggesting that you don’t have to be fully bilingual for your brain to benefit.