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Alex Stone's user avatar
Alex Stone's user avatar
Alex Stone's user avatar
Alex Stone
  • Member for 12 years, 3 months
  • Last seen more than 6 years ago
4 votes
2 answers
561 views

What plastic eating organisms are there to help with plastic in landfills problem?

4 votes
1 answer
92 views

Does sleep duration vary for animals based on time of the year?

4 votes
0 answers
850 views

How do duplicate brain regions (ex: left/right amygdaloid body) operate together?

4 votes
2 answers
642 views

Do humans have a "dominant" neurotransmitter system/sensitivity within their brain?

4 votes
0 answers
209 views

What is the biological basis of "energy" that extraverted humans draw from social engagements and introverts expend?

4 votes
2 answers
1k views

Are there special constants in biology that define organism's morphology?

4 votes
1 answer
285 views

Is there a hormone combination that makes humans grumpy?

4 votes
1 answer
192 views

What light intensity determines the start/end of a photoperiod in humans?

4 votes
1 answer
72 views

Are there yearly variations in HIOMT (HydroxyIndole-O-MethylTransferase) availability?

4 votes
2 answers
276 views

Is there a circadian component to hunger?

4 votes
0 answers
173 views

What is the mechanism by which Melatonin increases dream vividness and intensity in humans?

4 votes
2 answers
1k views

Does frequency of eye blinking reveal anything about human biology/nervous system?

4 votes
1 answer
905 views

Do effects of caffeine on human body change with habitual use?

4 votes
1 answer
200 views

What kinds of arousal can a human brain experience?

4 votes
1 answer
259 views

Are serotonin levels in humans affected by light?

3 votes
3 answers
3k views

Is there such thing as "half-life" of dopamine?

3 votes
2 answers
1k views

What are evolutionary implications of contraception and reduced childhood mortality rates worldwide?

3 votes
0 answers
124 views

Do humans have chemosensors for nutrients or chemicals? [closed]

3 votes
1 answer
229 views

Is there a comprehensive list of human circadian-like processes, hormones or gene expressions?

3 votes
1 answer
195 views

How compatible are mammalian digestive systems?

3 votes
2 answers
244 views

Expanding the SETI initiative to seek intelligent data within DNA sequences?

3 votes
1 answer
196 views

What triggers creative thought in humans?

3 votes
1 answer
718 views

What is the relationship between Homocysteine and Norepinephrine metabolic cycles?

3 votes
1 answer
210 views

Where are -HCl supplements absorbed in the human digestive system?

3 votes
3 answers
2k views

How is propagation of action potentials terminated once the "message" has been sent/received?

3 votes
1 answer
3k views

Is "tonic activity" common for neurons firing in the brain?

3 votes
1 answer
962 views

How are melatonin levels measured in humans?

3 votes
1 answer
68 views

Is there such thing as "biological cycles" of activity/performance/etc in mammals?

3 votes
0 answers
197 views

What controls the feeling of discomfort/comfort before and after sleep?

3 votes
2 answers
212 views

What is the biological basis for a human's ability to think clearly and be aware while "fighting/competing"?