20:
https://www.davidwolfe.com/sleeping-on-your-left-side/
19:
http://www.druginfosys.net/blog/4-strange-but-true-health-tips-youve-never-heard/
18:
https://authoritynutrition.com/27-health-and-nutrition-tips/
http://www.health.harvard.edu/staying-healthy/blue-light-has-a-dark-side
17:
http://www.nhs.uk/Livewell/workplacehealth/Pages/Howtositcorrectly.aspx
16:
http://www.lifehack.org/articles/lifestyle/6-ways-high-intensity-interval-training-hiit-can-significantly-boost-weight-loss-results.html
15:
http://www.realsimple.com/health/nutrition-diet/healthy-eating/secretly-unhealthy-foods
14:
#23 http://www.cracked.com/photoplasty_1396_26-unexpected-things-that-are-screwing-with-your-health/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1771792/
https://www.nei.nih.gov/health/glaucoma/glaucoma_facts.asp#a
https://www.newscientist.com/article/dn3996-tight-ties-may-be-bad-for-eyes/
13:
#13: http://www.cracked.com/photoplasty_1396_26-unexpected-things-that-are-screwing-with-your-health/
12:
http://www.mensfitness.com/life/20-worst-things-youre-doing-your-body-you-didnt-know
11:
http://www.ozy.com/wildcard/five-common-things-you-didnt-know-were-bad-for-your-health/65054
10:
https://www.pickthebrain.com/blog/5-ways-to-improve-health-happiness/
9:
#2: http://www.webmd.com/hypertension-high-blood-pressure/features/health-benefits-of-pets#2
8:
http://www.cnn.com/2011/HEALTH/07/08/why.gardening.good/
7:
http://listverse.com/2008/09/23/top-10-things-that-are-surprisingly-good-for-you/
6:
https://www.qualityhealth.com/heart-articles/surprisingly-heart-healthy-hobbies
5:
https://daringtolivefully.com/hobbies-to-improve-your-life
https://www.healthhub.sg/live-healthy/1352/surprisingly-healthy-activities-go-solo
4:
https://www.healthhub.sg/live-healthy/1352/surprisingly-healthy-activities-go-solo
3:
https://www.realbuzz.com/articles/10-surprising-things-that-boost-your-health/
2:
https://www.realbuzz.com/articles/10-surprising-things-that-boost-your-health/
1:
http://www.webmd.com/sex-relationships/features/kissing-benefits