Caffeine in coffee improves small blood vessel function

The caffeine in a cup of coffee might help your small blood vessels work better, according to research presented at the American Heart Association’s Scientific Sessions 2013.

Caffeine can disrupt sleep hours later

Drinking coffee might be a nice way to round off the evening meal or perk you up in the late afternoon, but it may well disrupt your sleep hours later when you retire for the night, according to a new study reported this week.