Both ginger and tumeric have been used to relieve pain, decrease nausea and enhance immune function 
Ginger can increase serotonin and dopamine levels. It could provide benefits for anxiety, depression, dementia, Alzheimer's disease, and post traumatic stress disorder. It can also be used as an appetite suppressant. On top of this there are many more health benefits.
The most active substance in turmeric is curcumin, which is known to have antioxidant, anti-inflammatory, antibacterial and anticancer properties.