Circadian Rhythm

Carolyn Gretton

The link between nighttime light and your thyroid

We use more artificial light than ever at night, both indoors and outdoors, and it’s affecting our health. Night light use is connected with a higher risk of obesity, depression, sleep disorders and diabetes. And according to researchers, it may be raising our risk of a particular type of cancer…

Dr. Adria Schmedthorst

The exercise-hormone intersection that lowers prostate and breast cancer risks

If you’re a night owl, getting up with the birds to exercise probably isn’t on your to-do list. But new research shows hitting the gym or even just heading out for a morning walk could be one of the best things you could do to lower your risk of cancer by boosting a cancer-fighting hormone. […]

Joyce Hollman

Why sleep’s elusive in your 60s and how to get it back

I’m in that age group where falling asleep and staying asleep tends to get harder by the year. But, contrary to what many people think, insomnia is not a normal part of aging that we just need to accept. True, sleep problems are more likely. But you don’t have to take them … well, lying down.