HEALTH NEWS   Turmeric may be as good for treating indigestion as drug to curb excess stomach acid Large amounts of sedentary time linked with higher risk of dementia in older adults, study shows Listening to yoga music at bedtime is good for the heart  Treating arthritis with algae Moderate physical activity linked with 50 percent reduction in cardiovascular death in over-65s Your body's own cannabinoid molecules may calm you during stress