This post was originally published on this site

New research finds that serotonin is necessary for sleep, settling a long-standing controversy.

media.net, 8CUUP9999, DIRECT rubiconproject.com, 19398, DIRECT, 0bfd66d529a55807 rubiconproject.com, 19398, RESELLER, 0bfd66d529a55807 pubmatic.com, 157599, DIRECT, 5d62403b186f2ace pubmatic.com, 157599, RESELLER, 5d62403b186f2ace openx.com, 537100188, RESELLER, 6a698e2ec38604c6 google.com, pub-7439041255533808, RESELLER, f08c47fec0942fa0 districtm.io, 100600, DIRECT rubiconproject.com, 17054, RESELLER pubmatic.com, 156181, RESELLER spotxchange.com, 211156, RESELLER, 7842df1d2fe2db34 spotx.tv, 211156, RESELLER, 7842df1d2fe2db34