Another hormone associated with suppressing hunger, peptide YY, was also abnormally low.

The main hormone associated with this stage is progesterone, which is significantly higher during the luteal phase than other phases of the cycle.

Other factors are also relevant: obese people have higher levels of some hormones associated with cancer and a higher rate of those cancers.

The hormones associated with fighting, said Loehr, dominate those associated with fear.

Some research suggests that it may provoke a greater release of hormones associated with acne.

They have found oxytocin, a hormone associated with affiliative impulses, which may help initiate the onset of a loving bond between mother and infant.

Studies of practitioners of the TM-Sidhi program have found positive changes in hormones associated with stress.

Research confirms high levels of cortisol - a hormone associated with stress - in affected dogs during and after thunderstorms.

Testosterone, a hormone more commonly associated with males, is also present in women.