r/askscience is a subreddit with 26.3M members. The community frequently discusses looking for a, looking for, muscle, health, and science, and they frequently recommend/review neuroscience books, and the most common flair used is human body, planetary sci., medicine, astronomy, and earth sciences.
Ask a science question, get a science answer.
Popular Topics in r/askscience
#1
Looking For A
29 posts
#2
Looking For
24 posts
#3
Muscle
13 posts
#4
Health
8 posts
#5
Science
7 posts
#6
Annoyance
6 posts
#7
Sound
5 posts
#8
Power
5 posts
#9
Testosterone
5 posts
#10
Tiredness
4 posts
Products Discussed in r/askscience
Neuroscience Books
4 reviews
#1
V.S. Ramachandran
5.0★ from 2 reviews
#2
Steven Pinker
4.0★ from 1 review
#3
Bear, Connors and Paradiso
4.0★ from 1 review
Flair Used in r/askscience
#1
Human Body
: "Does larineco gum actually restore your teeth? I want to know before i even consider getting it"
4 posts
#2
Planetary Sci.
: "Which is the least able to support life, a planet that doesn't rotate (similar to Venus' rotation) or a planet that rotates at 90° relative to their orbit(similar to Uranus' rotation)? Assume both are at the optimal distance from their star to support life."
1 post
#3
Medicine
: "How are hydration packets more hydrating than just drinking water with your meals that also include salt and electrolytes?"
1 post
#4
Astronomy
: "How do we know that all galaxies around us, including our own, that we all are moving towards the great attractor, without having any stationary galaxys or like a not moving “background” to compare our movement to?"
1 post
#5
Earth Sciences
: "What is the maximum number of people earth could sustain?"
1 post
#6
Neuroscience
: "Are the impacts on cognitive health from loneliness countered by social media / online interactions?"
1 post
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Yearly
+131k members(0.5%)
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Last updated: August 25, 2026