A nice article from the abc on the art of suffering:
"There is a technique called trans-cranial direct current stimulation (TDCS) which, when used to target this area of the brain, has the effect of reducing perception of effort, effectively expanding the limits of physical exhaustion.
It involves very low frequency electric currents being passed over the skull and is also employed in the treatment of depression, epilepsy, stroke, dementia and mental illness.
Experiments - many of which involve cycling as a test of endurance - have shown that athletes can perform harder for longer after it is administered"
https://www.bbc.com/sport/cycling/47278392
"There is a technique called trans-cranial direct current stimulation (TDCS) which, when used to target this area of the brain, has the effect of reducing perception of effort, effectively expanding the limits of physical exhaustion.
It involves very low frequency electric currents being passed over the skull and is also employed in the treatment of depression, epilepsy, stroke, dementia and mental illness.
Experiments - many of which involve cycling as a test of endurance - have shown that athletes can perform harder for longer after it is administered"
https://www.bbc.com/sport/cycling/47278392