WHC March 18, 2015: Diet soda and weight gain? Breastfeeding and IQ? Say no to PSA test?

Afternoon Edition – Wednesday House Call  March 18, 2015

Today:

1) I can’t win! Even diet soda can make me fat?
Regularly drinking diet soda could impact waist size, say the authors of a study linking calorie-free colas to greater abdominal obesity in adults 65 years of age and older. The study, which was published in the Journal of American Geriatrics, is among the first to focus on the effect of artificial sweeteners in an aging population.
http://www.ctvnews.ca/health/diet-soda-could-be-linked-to-bulging-bellies-in-adults-study-1.2285543

2) Breastfeeding is smart! People breastfed as infants have higher intelligence scores in adulthood, and higher earnings, according to a study published Wednesday that tracked the development of 3,500 newborns over 30 years. (this sounds fishy to me)
http://www.ctvnews.ca/health/breastfeeding-linked-to-higher-iq-and-wealth-in-adulthood-study-suggests-1.2285406

3) Cancer Care Ontario new guidelines advise against prostate cancer screening for men at average risk