Lifetime cannabis use is associated with several changes in brain structure and function in later life, suggests an observational study, but these associations may not be causal, finds a genetic analysis of the same data, published in the open access journal BMJ Mental Health.
Epigenetic changes can contribute to the development of type 2 diabetes
Do epigenetic changes cause type 2 diabetes, or do the changes occur only after a person has become ill? A new study by researchers at