Diving reflex
If you hold your breath and put your face in cold water, your heart will immediately slow down by 25%. Fact source...
Work 11 hours
People who work 11 hours or more a day are 67% more likely to have a heart attack than people with an 8-hour work day, according to a study. Fact source...
Heart symbol
The heart symbol was first used to denote love in the 1250. Prior to that, it represented foliage. Fact source...
Love synchronize
Couples who are in love synchronize their heart rates after gazing into each others’ eyes for three minutes. Fact source...