| Time | October 18, 2008 - 3:41pm |
| Link | Men's Reactions Peak at Age 39 (LiveScience.com) [1] |
| Description | LiveScience.com - Scientists asked 72 men, ranging in age from 23 to 80, to tap their index fingers as fast as they could for 10 seconds. The researchers also did brain scans to measure in each subject the amount of myelin - a fatty sheath of insulation that coats nerve axons and allows for signaling bursts in our brains. |
| Source | Yahoo Science feed |