33
Participants
Start Date
July 4, 2020
Primary Completion Date
June 30, 2021
Study Completion Date
June 30, 2021
5-HTP
5-HTP that have Good Manufacturing Practice certification will be used and participants will be suggested to be take the 5-HTP supplementation at bedtime.
Without 5-HTP
Subject will not take 5-HTP
Hannah Seniors Activity Centre, Singapore
National University of Singapore, Singapore
National University of Singapore
OTHER