More science writing: A few science headlines. Dog-carrying house dust may protect against asthma. Allergic people may have less brain tumor problem. Indo-European languages started in Anatolia. Hawking may have become so brilliant in part because his disability stops him from doing "distractions," leaving more time to sit and think. A virus makes snakes fold themselves up. There may be a way to "re-work DNA and reduce asthma. Mostly from Medical News or Science News online.