Los efectos de las drogas sobre el cerebro. Cocaína, éxtasis, tabaco, alcohol, heroína, psicofármacos... Todas las drogas que pueden provocar dependencia tienen una característica común: aumentan la cantidad de dopamina disponible en una determinada zona del cerebro: el llamado sistema de recompensa.
Would be most consistent with the two-factor theory
This theory was created by Stanley Schachter and Jerome singer. According to this theory, when an emotion is felt, a psychological arousal occurs , and the person will use the immediate environment to search for emotional cues that will be used to label the physiological arousal
answer:
d. acne
I don't think washing prevents cancer...
use sunscreen to prevent sunburn
washing does not help with chapping
keeping your skin clean does prevent acne though :)
Venous blood travels under low pressure and generally against gravity, valves keep it from flowing backwards