What contributed to the increase in life expectancy and population growth in the 16th and 17th centuries?

Positive population growth during this period of time is associated, of course, with an improvement in living standards, an increase in the number of products and the growth of cities. The average duration of a resident of European states has also increased significantly. Even despite the fact that during this period there are continuous bloody wars (like, for example, the Thirty Years War), population growth remains positive, that is, the birth rate significantly exceeded the death rate.