Nootropics
Scientific American might say button pressing reaction interval is more predictive than iq, or possibly fully elucidates iq causing greater longevity, that makes it so that stimulants as well as nootropics could have a longevizing effect; screening molecule variants of stimulants on yeast, c elegans, drosophila and mice to find stimulants that cause greater longevity is beneficial

At mice, screening stimulants to find those that are prosocial, peaceful, creative, productive, as well as fun is beneficial, human study participants on one occuremce doses could also be quantified as to various positive measures of beneficialness

Notably, different stimulants function different ways. Noting the button press predictor of longevity it is possible that stimulants that effect the peripheral nervous system, even those that do not traverse the blood brain barrier could be longevity drugs, CNS stimulants could also be quantified as to longevizing effects as could stimulants that effect both, also I perceive there are other nervous systems like somatic sensory nerves that could have stimulants focused on them and quantified as to longevity effects

Perhaps localization (published and new cyte and tissue localization technologies, as well as cytomembrane transport moieties) of stimulants also contributes to longevity effects, particularly longevity heightening effect nerves, possibly the vagus, the pancreatic nerves as well as spinal cord; localization could reach these while omitting effects on the heart like rapid pulse or blood pressure effects, decreasing any deleterious effects

Stimulants could function based on different parts of neurons and it could be possible to find neuron areas that create a modality of stimulant type, a stimulant theme to make new screenable libraries with that heighten longevity; dendrite active stimulants. Synapse active stimulants, myelin enhancement that is stimulating or also makes button pressing reaction interval, as well as organism wide neural reaction interval more rapid are all screen able as different possible longevity drugs;
Screening stimulant molecule varieties that are lipiphilic, hydrophilic, neutralphilic, as well as different sizes of AMU molecules are possible screenable libraries to find longevizing effects; also the 99.9th percentile of longevizing activity at c elegans or 96 well plate vertebrate fish stimulants could then be screened on mice, possibly sequentially every 72 hours to find beneficial benevolence, empathy, kindness, peacefulness, cognition, fun heightening molecules, then the quantified effects at mice could produce beneficial longevity heightening stimulants that voluntary human experiment participants could quantify with things like reactions to software and fMRI similarity to humans at the 99.9th percentile of beneficial mind, feeling, behavior and cognitive capability;
Noting the higher velocity reaction intervals link to longevity it is possible nonchemical nerve velocity heightening technologies could be longevity technologies; microvoltage or micro current stimulation, EEG like non CNS electricity directing and causing EEGish frequencies like those recorded at 14 year olds could cause non CNS nerves to make the kinds of reoccurring waveforms at the same locations as particularly youthful, or actually (14 year old) youthful people, entire organism EEG like stimulation is described at the online site with my material on it, possibilities are ankle as well as wrist wearable through-body stimulation as well as possible electrochemically active .1 to 1 mm CPU size networked electrical waveform network making decal technology

Making screenable library variants to find longevity heightening stimulants based on these chemicals:
Modafinil
ADD drugs,
Phenylethylamines, pikhal shulgin
MDMA, prosocial. fun
Stimulant molecular variants of rapamycin
CART peptides
Ephedra
Epinephrine molecular variants that are pleasant
nonhabituating +Caines, procaine has about one study quantifying wellness and longevity benefits, screen 1000 nonhabituating -Caine's at outdoor mouse dorm mice

Screening a million stimulant molecule variations on yeast could find longevity drugs even though yeast do not have nervous systems, among the possibilities are multifunction molecules with another longevity mechanism HAEE is an 10HDA(longevity) like molecule that causes anxiolytic and nerve healing effects, it is possible there is a stimulant molecular variation of HAEE, possibly even a decanoic acid ester, with simultaneous 10HDA longevity effects, HAEE anxiolytic and nerve healing effects and stimulant based longevity heightening effects; similarly 10HDA is an HDAC inhibitor, it is possible some variety of an HDAC inhibitor or other epigenetic modifying molecule that causes genetic availability of spontaneous stimulation, heightens stimulant ability, or is also a molecularly active stimulant as an actual chemical