I believe a mixture of things is going on.
1. mass hypnosis and hypnotism.
2. something real that is affecting certain areas.
Just speculation. I do think heavy metal toxicity including fluoride, aluminum, mercury, etc. may be contributing to both cases. There were those old internet conspiracy theories stating fluoride inhibits the pineal gland. If true, then the masses who've been using fluoride toothpastes their entire life may be very vulnerable to this mass hypnosis. Personally, I haven't used such a thing in 10 years whereas my friends and family who have, appear to be blind to many recent psyops. Curious if people have a similar observation.
Another point. I do think our physical and spiritual health are tied together. Esoteric teachers such as Edgar Cayce placed a great importance on the endocrine system as the metaphysical gateway. So people may psychosomatically will their sickness into reality if their glands have been compromised by toxic metals and/or they do not develop a strong spiritual mindset thru meditation.