Weizmann Institute researchers say that progesterone and the stress hormone cortisol drive circadian rhythms; when out of ...

In truth, looking over the piece, (some of it recycled from articles I had written years ago), I see that that Prof. Gad Asher and his group have found a connection between the cycle of hormones that ...

Inside the body, a 24-hour rhythm, known as the circadian rhythm, quietly coordinates when we sleep, wake, eat and recover.

New research suggests that the strength and timing of the body’s internal clock may be closely tied to dementia risk.

The return to "standard time" is better for our health according to sleep scientists, but the time change can be disruptive, and our bodies must also adjust to more hours of darkness as we head ...

Circadian rhythms that are weaker and more fragmented are linked to an increased risk of dementia, according to a new study ...

Your daily rhythm may matter more for brain health than previously thought. Older adults with weaker, more disrupted activity patterns were far more likely to develop dementia than those with steady ...

Regardless of your inner clock, the optimal work-out time is in the afternoon and early evening. During the second half of the day, the body's systems are geared up for action; the heart and lungs are ...