1) Maca and general studies
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3184420/?tool=pubmed
2) Maca and Athletic Performance
http://www.ncbi.nlm.nih.gov/pubmed/19781622
3) Maca and Bone Health
http://www.ncbi.nlm.nih.gov/pubmed/20616517
4) Maca and Brain Function
http://www.ncbi.nlm.nih.gov/pubmed/20633111
5) Maca and Emotions (Depression & Anxiety)
http://www.ncbi.nlm.nih.gov/pubmed/18784609
6) Maca and Reproductive Health Function
http://www.ncbi.nlm.nih.gov/pubmed/20452008
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2928177/
7) Maca and Memory
http://www.ncbi.nlm.nih.gov/pubmed/21780878
8) Maca and Menopause
http://www.ncbi.nlm.nih.gov/pubmed/21840656
9) Maca and Prostate
http://www.ncbi.nlm.nih.gov/pubmed/21762188
10) Maca and Skin Protection
http://www.ncbi.nlm.nih.gov/pubmed/21781063