Social separation stress

1. Social separation stress is associated with body weight in marmosets.

   “Non-reactors had less weight gain/more weight loss; elevated levels of calcium, phosphorus, and white blood cells; and received less grooming and social contact time during reunion.”

   Animalsin HPA non-reactors compared to reactors

   Aging leads to altered physiological reactivity in response to repeated social separation stress in a nonhuman primate model

   Hormones and behavior·13 Apr 2026

1. Social separation stress is associated with cortisol in marmosets.

   “Marmosets who approached their partner more and were groomed less during reunions had higher cortisol levels the following day.”

   Animalsduring reunions following social separation

   Aging leads to altered physiological reactivity in response to repeated social separation stress in a nonhuman primate model

   Hormones and behavior·13 Apr 2026

More on Cortisol

1. Social separation stress is associated with HPA axis reactivity in marmosets.

   “female marmosets, especially peri-geri females, had higher HPA reactivity and better HPA recovery than male marmosets, but this difference diminished in older, very-geri marmosets.”

   Animalsrepeated social separation challenges

   Aging leads to altered physiological reactivity in response to repeated social separation stress in a nonhuman primate model

   Hormones and behavior·13 Apr 2026