LACKING MOTIVATION? The answer may be low glutathione levels! Feeling "motivated" equates to the effort it takes to overcome a "cost" in pursuit of the "reward". In your brain, much of this Changes in levels of the antioxidant glutathione in brain and blood across the age span of healthy adults: A systematic review ScienceDirect Frontiers Glutathione: A Samsonian life sustaining small molecule that protects against oxidative stress, ageing and damaging inflammation Your Glutathione Index Defines How Your Cells Are Ageing