By dosage, the mean changes were: 500 mcg: 127% 750 mcg: 176% (single study) 1,000 mcg: 280% 1,500 mcg: 310% 2000 mcg: 260% 5,000 mcg: 62% While 1,500 mcg of vitamin B12 showed the highest average increase, the effect plateaued or declined at higher doses, suggesting a possible saturation of absorption pathways
This can sometimes make you feel tired
Movement According to a 2020 meta-analysis, long sessions of coordinated exercises such as yoga, tai chi, and pilates are the most beneficial for our brains, particularly if youre male.47 The length of time youre exercising is important here, as longer exercise routines require you to practice your planning, concentration, and willpower abilities, which strengthen the brain beyond the other healthy effects of exercise.48 The neural benefits of exercise are even greater for people with mild cognitive impairments, as evidenced by a study that also found lower levels of depression and better sleep quality.49 Going outside Psychological researchers agree that going outside really can make a big difference in your mental health
However, arthritis, back pain, and muscle pain may also occur after a vitamin B12 injection
