With improved blood circulation to the scalp hair follicles will get a good supply of oxygen and nutrients from our diet. Good blood circulation also helps in distributing natural sebum evenly across the scalp, leading to good hair growth. This will result in healthier hair with more volume.hen blood flow in the scalp area is less than the normal, it will not receive the essential nutrients required for healthy hair growth. This will ultimately result in various hair related problems. But when you exercise your stress level decreases, which stimulates hair growth.
Twitching in the left thumb may also indicate an overdose of caffeine, stimulants or amphetamines or a drug side effect to estrogen, corticosteroids or diuretics, adds MedlinePlus. Diet is also a cause of left thumb twitching, especially when an individual fails to consume a balanced diet. When the body is unable to fight off ailments, such as an autoimmune disorder, twitching is often a side effect.
I work on my computer most of the day. My left hand does shortcut keys while my right hand controls the mouse. A month ago my middle finger on my left hand started to twitch to the side while working. Now it twitches a lot even when not working. I have no family history of neurological disorders (like Parkinson's).