physiological

“That experience was quite interesting because I had never had a physiological feeling like that before.”

Such decay was "not a disease and not a cause for concern" but "a normal, healthy kind of part of the trees' physiological development", said Dr Pyne.

A firm, stable touch on your chest or shoulder can create physiological calm.

For their investigations, the researchers combined physiological studies - such as imaging techniques to visualise processes in the fly brain, chemical analyses of environmental odours, and behavioural studies.

Female athletes, for various physiological reasons, are between two and eight times more likely to tear their ACLs, and that risk — in both knees — grows exponentially within two years of an ACL tear.