New research links nighttime light exposure to increased diabetes risk. Find out how your bedroom environment might be affecting your health ...

Excessive screen time and chronic stress, especially in young people, disrupt circadian rhythms and immune function, ...

Cortisol regulates blood sugar, suppresses inflammation, regulates metabolism, is involved in our circadian rhythms and influences the fight-or-flight reaction. It's essential for survival.

Betul Hatipoglu, MD, professor of medicine at Case Western Reserve University's School of Medicine and medical director of the Diabetes and Metabolic Center at the University Hospital Cleveland ...

Although light and dark have the most significant influence on your SCN, other factors can also affect your circadian rhythm, such as: Hormones like melatonin and cortisol may increase or decrease ...

Cortisol levels may not be rising just on waking up as previously thought. Rather, they are already on the rise as the body ...

They added that previous studies analysing the cortisol response have typically assessed saliva samples obtained after waking up, not in the period prior to this. Consequently, the studies are not ...

Many bodily functions, including sleep and digestion, are influenced by your circadian rhythm. This 24-hour cycle, which is linked to the idea of a biological clock, prompts the body to release ...

Cortisol rises before waking as part of the body’s circadian rhythm, not in response to awakening ... to prove a change in the rate of cortisol secretion over the awakening period.

Circadian rhythms, the natural 24-hour cycles of ... Awakening not associated with an increased rate of cortisol secretion, Proceedings of the Royal Society B: Biological Sciences (2025).

The study found no evidence that cortisol secretion increases immediately after waking ... The findings also stress the importance of circadian rhythms, the body’s natural 24-hour cycles, in ...

Circadian rhythms, the natural 24-hour cycles of physiological and behavioural patterns ... Awakening not associated with an increased rate of cortisol secretion. Proc Royal Soc B: Biolog Sci.