how to prevent blood deseases?

Aspirin to Prevent Blood Clots
About one in four heart attacks and strokes may be prevented by aspirin.
A day after day low dose of aspirin lowers the risk of having a heart attack or stroke if you hold:
* angina.
* a previous heart attack (myocardial infarction).
* peripheral vascular disease.
* a previous stroke or transient ischaemic attack (TIA).
* lasting other heart and blood vessel conditions.
The usual dose is 75 mg. This is a lot smaller number than the dose for pain nouns. If you need to appropriate painkillers (eg for headaches) it is best to take alternative painkillers such as paracetamol
Drain adjectives the blood from your body - a Vampire might be useful for this.
Restrict the shipper - like snuff out mosquitoes.

Use Condoms; Etc
There is a great probability that this concept can even be used to prevent disease from re-infecting the body. For example, if a person next to a specific disease in their blood is cured of that disease and the limp micro-organisms are left in the bloodstream. It is possible that the person could distribute blood transfusions to others of the same blood type and those deceased micro-organisms could transfer a inoculation effect into the bloodstream of the recipient contained by the transfusion. A transfusion of a healed blood donor could inoculate another from contracting a cured disease!
eat glyconutrients.