Hi there,
First of all, I am sorry if this subject has alredy been discussed on the forum, anyway I cant seem to find anything on it with the search tool, so here goes:
I am a teenager piano student, and I just got out of puberty. The thing is during puberty my hands started to get really cold, and i find that to be really bad to my performance, not to mention anything about muscle lesion. I started a Gingko (Biloba) and vitamin b12 diet to start pumping more blood to my extremities
Indeed this is a circulation problem
You should use sublingual vitamin B12 such as Phoenix or Solgar 2000mcg as it's the only vitamin B12 absorbed even if there is a lack of intrinsic factor
So, the sublingual is the only one effective when there actually a deficiency
You also probably has a problem of periphereal blood flow known as blood pooling
The veins in you legs dilatate and the blood keep accumulating there while leaving the hands withou blood supply
Never play after eating
After eating the blood flow is redirected towards the digestive system leaving a lower blood flow in the arms
Drink a lot
Blood pooling can't be cured (and yes, it starts with pubery on predisposed subjects) but it can kee kept under control
Have your sodium and your blood pressure chrckrd by your physician
If low, you can eventually talk to him about the possibilities of using licorice estract or salt tablet
Drink often, blood pooling is also a problem of hydration
You don't have to drink much, just very often, several time in an hour .. take few sips but drink often
Don use hot water and don't drink hos beverages
Hot dilates veins eve more worsening the problem instead of improving it
Take several rests during each practice session
As soon as you feel your hand cold, lye down on your back on a sofa with you legs up, this way you prevent blood pooling from occurring
When using water to warm your hand, just alternate 30 seconds of very hot vater with 30 seconds of very cold water for 3 minutes
The themic difference betwewn cold and hot will oblige your body to redirect circulation toward the up body areas
You can also have your potassium levelsd checked to see is there's not a problem of potassium homeostasis leading to water and sodium loos
When you talk with your physicianm mention also diabetes insipidus
This would result in tachycardic horthostatic intollerancefrom low osmotic pressure to water loss from lack of an hormone dealing with retaining of fluids
If you're not allergic to nuts, eat some nuts as snacks as they raise the internal body temperature from the fats metabolism
You can use some gloves on the meanshile with the fingers cut so that at least your wrist and palm are kept warm
Hope you solve your problem soon
Daniel