Why you should ask your friends how long you will live.
1. Introverts versus extroverts
Outgoing, sociable people have the strongest immune systems, a recent study finds.
Those who are the most careful, though, are more likely to have a weaker immune system response.
The research found no evidence, though, that a tendency towards negative emotions was associated with poor health.
2. Optimists versus pessimists
Optimists have healthier hearts than pessimists, a study of over 51,000 adults has found.
Professor Rosalba Hernandez, who led the study, said:
“Individuals with the highest levels of optimism have twice the odds of being in ideal cardiovascular health compared to their more pessimistic counterparts.
This association remains significant, even after adjusting for socio-demographic characteristics and poor mental health.”
Optimists also had healthier body mass indexes, were more physically active and less likely to smoke.
Researchers found that the more optimistic people were, the greater…
View original post 225 more words