Yep..bothers me immensely.
There are LOTS of theories out there as to why cancer rates are going up.
The ones I give credence to are;
SUGAR..way too much of it. Insulin spikes are bad in terms of creating a pro-inflammatory state. It seems that every single food item the average American eats has either sugar, high-fructose corn syrup or white flour in it, on it, or hidden in it.
This pro-inflammatory effect also ties into rising rates of IBS, Chrohn's, ulcerative collitis, asthma/allergies and heart disease.
MINERAL DEFICIENCIES;
Soils in agricultural areas are becoming depleted of various key nutrients. Other aspects of our lifestyles add to this deficient state..lack of sun, too much sugar, etc. I feel the key deficencies in this country are folic acid, vitamin D, magnesium, selenium and iodine. There are zillions of others, but I feel if you cover those bases, you'll be going a long way towards reducing your cancer risk.
ANTIBIOTIC USE;
This one is a bit sketchy and lean on hard data, but here's what I have peiced together.
Long term antibiotic use..like for acne treatment when I was a teen..not only wipes out many of the 400 strains of beneficial bacteria in your gut but can also damage the gut's "intrinsic factor" which enables the gut to absorb nutrients like B12. A chronic, long term deficiency of b12 can, as I have found out first hand, lead to not only low energy levels but allergies and asthma.
B12 plays literally hundreds of roles in the body and one of the most important is modulation of the immune system. I practically grew up on antibiotics then developed severe, debilitating allergies years later. Never put the two together until I started supplementing with injectible B12.
Oral B12 never did a thing for me, but the injectible literally changed my life. Within a few weeks of using it, my allergies were gone..during the middle of Arizona's horrendous spring allergy season. I no longer needed anti-histamines for the first time in 15 years.
Take it as you will, but these have been my observations.