Eyespy: January 2011
Troublesome testes—Looking for a man who’s tall, dark, and handsome? Be warned—he may be more likely to develop testicular cancer. Researchers in the US conducted a meta-analysis of 14 studies looking at the association between height, weight, and testicular germ cell tumours (Br J Cancer 2010;103:1467-74). Taller men were significantly more likely to develop such tumours, with an additional 5 cm in height conferring a 13% greater risk (P<0.001). As testicular cancer is relatively uncommon—accounting for just 1% of male cancers—the absolute risk remains low for tall and short alike.
Fighting fit—People who exercise regularly are half as likely to catch a cold as those with sedentary lifestyles, say researchers in North Carolina. In a prospective cohort study more than 1000 adults had their respiratory health tracked for 12 weeks (Br J Sports Med 2010; doi:10.1136/bjsm.2010.077875). On average, participants who exercised five or more days a week had cold symptoms