True or false: Cold weather makes you sick
FALSE! Germs are the only thing that can make you sick. You can go out in the freezing cold with wet hair, and if there aren’t any germs around, you’ll stay sniffle-free. But there is a correlation: The viruses that cause the common cold thrive in low temperatures.
True or false: Not all heart attacks involve chest pain
TRUE! A 2012 study of more than 1.1 million heart attack patients found that 31 per cent of men and 42 per cent of women didn’t have any chest pain before being hospitalised. The American Heart Association recommends calling an ambulance for other symptoms, too, including shortness of breath, light-headedness, and pain elsewhere in the upper body.
Here are some more silent signs of a heart attack you might be ignoring.
True or false: Being overweight shortens your life expectancy
FALSE! It’s what researchers call the “obesity paradox,” though the “overweight paradox” would be more accurate. Obesity is linked with a host of health problems, including so-called all-cause mortality, but the evidence isn’t strong for those who are overweight. A recent review looked at ten studies of more than 190,000 people and found that overweight people had the same longevity as normal-weight adults, though they did have a higher risk of heart disease.