1 DNA and proteins are key molecules of the cell nucleus. 2  One gene makes one protein. 3  A gene is made of DNA. 4  Bacteria and viruses have DNA too. 5  The DNA molecule is shaped like a twisted ladder. 6  A half DNA ladder is a template for copying the whole.  RNA is an intermediary between DNA and protein.
1 Another theory holds that depression may directly damage the brain, leading to dementia. âSimply put, chronic stress and/or depression may result in the release of cortisol,â Gorman says. Over time, this stress hormone can harm the brain, she says.  A third theory points to reduced brain volume.
Are ADHD and Dementia Preventable Diseases? Environmental chemicals adversely impact mental and physical health. ADHD, Depression, Anxiety, Fibromyalgia, Chronic Fatigue Syndrome and dementia all share one common denominator in the scientific literature: they can all be triggered by exposure to environmental toxins. All of us are continuously exposed to internal and externally produced toxins, yet not everyone feels their effects.