Che Guevara was literally an adrenaline junkie, for instance: danger released the hormone that allowed him to breathe freely.
THE TEN "CAUSAL SYMPTOMS" OF "A.D.D." LISTED IN THE DSM IV: RARELY DO children AFFLICTED "WITH A.D.D." 1) OBEY SCHOOLWORK DIRECTIVES 2) SUSTAIN ATTENTION TO SCHOOLWORK 3) BOTHER WITH SCHOOLWORK DETAILS 4) TRY TO AVOID DISTRACTIONS FROM SCHOOLWORK 5) TRY TO AVOID MISTAKES IN DOING SCHOOLWORK 6) LISTEN TO THE TEACHER'S DIRECTIVES 7) REMEMBER SCHOOL ROUTINES 8 PREPARE FOR SCHOOLWORK 9) ORGANIZE SCHOOLWORK TASKS 10) LIKE TO DO SCHOOLWORK
They say Che Guevara used extensively an adrenaline inhaler to deal with shortness of breath attacks due to his asthma. Something similar to this
Cocaine and amphetamines concentrate in the central link of the reward circuit (the ventral tegmental area and the nucleus accumbens). These areas contain especially high concentrations of dopaminergic synapses, which are the preferred target of these drugs.