My method of seed sowing involves simply sprinkling seeds on the ground where they will grow and eventually flower. Much easier than elaborate indoor methods.
It may surprise you that another important function of the immune system is to hunt rogue cells such as cancer cells and kill them before they spread or grow into tumors.
We certainly may be getting better at diagnosing allergies but, additionally, there are many things about our modern way of life that may make us more vulnerable to them.
