Here are some links to articles and resources about meditation that I referenced or used in my lightning talk today at RailsConf 2014.
"…meditating for just 30 minutes a day for eight weeks can increase the density of gray matter in brain regions associated with memory, stress, and empathy" – A Little Meditation Goes a Long Way
“Focusing on the present rather than letting the mind drift may help to lower levels of the stress hormone cortisol” – Mindfulness from meditation associated with lower stress hormone
"Meditation, or mindfulness practice, has become all the rage throughout the tech & business world." – Meditation: The Startup’s Secret Weapon (event in 2013)
Meditation doesn’t actually do anything – tech co-working space in Boulder
Chopra Center Meditation – free 21-day meditation narrated by Deepak Chopra, in progress (currently on day 11, day 7 available)