PB
I think we're being set up to be overtaken by multiple health issues. Whatever it is that's happening with the sun, our immune system relies on vitamin D to function, it's an absolutely critical piece. As a nation we no longer eat a healthy diet, the junk called food today also impairs our health. The lifestyle of most is not health-giving, at minimum. Our weakened bodies are then susceptible to microbes and toxins.
There are means and methods to fight for health, but it requires study and work. Do it for the chilluns.