Group exercise 'boosts happiness'

They could have saved themselves a lot of time and just asked us, experts in the Group Misery Theory (as well as the Group Stupid Theory aka Team Darwin)

http://news.bbc.co.uk/2/hi/health/8257716.stm

Group exercise 'boosts happiness'

They may feel happier than if they were on their own

Exercising together appears to increase the level of the feel-good endorphin hormones naturally released during physical exertion, a study suggests.

A team from Oxford University carried out tests on 12 rowers after a vigorous workout in a virtual boat.

Those who trained alone withstood less pain - a key measure of endorphins - than those who exercised together.

Writing in Biology Letters, the authors speculate these hormones may underpin an array of communal activities.