If you plan on slicing a finger or scraping a knee anytime soon, try to make it during the day. Scientists report that the time of day when you're injured may impact healing rate, based upon the circadian rhythms of skin cells.
Looking at a database of persons recovering from burn wounds, they found that people injured during the day took 17 days to heal compared to 28 days on average for those injured at night.
As if being obese wasn't enough of a health risk, new research suggests that fat cells can absorb at least one chemotherapy drug used to treat several forms of leukemia, reducing the efficacy of treatment. Fat cells also appear to change the drug's molecular structure so it's less toxic to leukemia cells.
The study was the first to show fat cells metabolize and inactivate a therapeutic drug.
Body of Knowledge
An infant's brain almost triples in size during the first year of life. In adulthood, though, the brain loses about one gram (about one-quarter of a teaspoon) of mass per year.
Life in Big Macs
One hour of massaging someone while standing burns 272 calories (based on a 150-pound person) or the equivalent of 0.4 Big Macs.