Toxins love to get you while youre young. Lead, mercury, secondhand smoke and sundry other environmental nasties do a lot more damage when tissue is immature, vulnerable and growing than when its mature and comparatively fixed. – Jeffrey Kluger
Older fatherhood isnt all bad: testosterone rates drop about 1% per year as men age, making them less reactive and more patient, and a professionally established middle-aged man is likely to have more time and money to devote to his kids than a twenty-something whos just getting started. – Jeffrey Kluger