Why do eyebrows grow so slowly?
Summary
Dr. Chris Smith answers listener questions on why eyebrows grow bushier with age, the optimal time to brush teeth to avoid enamel damage, and why hot water sounds higher-pitched. He explains the biology behind cold shivers, infrasound’s role in ghostly sensations, and nerve conduction speeds. The episode also covers the science of mixing oil with butter and factors affecting vitamin D synthesis from sun exposure.
Topics discussed
Whole Foods Market advertisement
Introduction and world's oldest person
Why eyebrows grow faster with age
Best time to brush teeth: before or after breakfast
Why hot and cold water sound different
The science behind cold shivers and goosebumps
Infrasound and the sensation of ghostly presences
Nerve conduction speeds and reaction time lag
Adding oil to butter to increase smoke point
Factors affecting Vitamin D synthesis from sun
Closing remarks and Acast advertisement
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