From your description, I suggest that you'd better consult a physician first to do a thorough examination to your grandad. And if necessary, you should consult a psychologist to find some psychological therapy. The alzheimer’s association has developed a list of ten warning signs:
1. Memory loss that affects job skills
2. Difficulty performing familiar tasks
3. Problems with language; continually forgetting simple words
4. Disorientation to time and place
5. Poor or decreased judgment
6. Problems with abstract thinking
7. Misplacing things in inappropriate places, e.G. Wristwatch in the sugar bowl
8. Changes in mood or behavior; rapid mood swings
9. Changes in personality; easygoing to fearful and angry
10. Loss of initiative
the early symptoms of alzheimer's disease include forgetfulness, loss of concentration,inappropriate behavior,etc.
Flax seed powder may improve nerve system health, which is important in the treatment of alzheimer’s disease. Ginkgo extract helps maintain peripheral circulation to brain. The acetyl group of acetyl l-carnitine contributes to the production of the neurotransmitter acetylcholine, which is required for mental function, and therefore may be involved in the treatment of alzheimer ’s disease. Thiamin is essential for normal nerve function. Vitamin b12 assists maintenance of a healthy nervous system. Phosphatidylserine plays a role in neurotransmission and may support brain function and boost memory.
Please note that this is not to be taken as medical advice. If you are seeking treatment, please contact your healthcare professional.