Feelgood factor of human interaction

‘In-person meetings and conversations show a dramatic increase in our brains in dopamine.’ Illustration: Jitendra Jadhav/Getty Images

Re your report (‘Pull the plug’: protesters resort to direct action against AI firms, 6 October), the US neuroscientist Ben Rein has shown that there is a fundamental difference in our cognitive response according to the type of interaction we have. In-person meetings and conversations show a dramatic increase in serotonin, oxytocin and dopamine – “feelgood” hormones – compared with online interactions. I have been encouraged to speak to people at bus stops.
Judith Furner
Eastbourne, East Sussex

• Re easing winter fuel costs (Report, 6 October), it would benefit everyone if the outrageous daily standing charges were reduced or on a sliding scale based on usage. I can’t be the only person whose standing charges each month are half or more than the energy used.
Judith Pearson
Sheffield