GH1 and memory impairment: A more complex rhythm with several maxima and minima, is expected for thesomatotroph axis, especially for growth hormone (GH), whereas IGF-1 levels in bloodshowed maxima in the morning and minima in the early evening.2 Disturbance of pituitary hormone homeostasis can havefar-reaching consequences such as influencing heart rate, blood pressure and glucosehomeostasis, and account for muscle wasting and memory impairment.1