Genetic traits that influence longevity exist, and can certainly be passed from parents to children. But as a general phenotype, longevity is very complex. All the genes related to longevity will not necessarily pass to the children in a predictable way.
Data collected by the UK biobank genetics, enhances our understanding of genes and how they affect health.
Mental illness in 2018 is a huge issue affecting many people and unfortunately is still considered insignificant by many people. It isn't insignificant, that's for sure. But is it genetic?
Diseases can be caused by various things. Those can be determined by research into patients, comparing them with healthy individuals and identifying what works and what doesn't. Such research is hard and expensive, but it is only the beginning in the drug discovery process.
mRNA has been used to deliver functioning genetic code into cells that produces specific proteins. Researchers have found new ways to deliver such molecules and induce gene expression that could help or even treat diseases such as cancer.