My general condition is that I used to feel more cold in airconditioned places where similarly aged and similarly dressed people feel normal. I suspected that it may be due to hypothyroidism. However, my thyroid hormones levels are nor very abnormal. Moreover, supplementation with thyroxin 25 mcg per day did not produce any improvement in cold intolerance condition.
I have taken Vitamin D3 cholecalciferol 2000 I.U. chewable tablets 1 tablet/per day after the breakfast. It has increased my tolerance to cold temperature especially the office air conditioning. I have not taken any other medication during this time. The effect is visible from the second dose itself.
Positive effects:
1. Increased tolerance to cold
2. Reduced frequency of urination - (suggesting a steroid-like effect)
3. Reduced the appearance of under-eye dark circles.
4. Improved the focus and concentration slightly
5. Reduced the muscle pain and hand pain associated with mouse use
Negative effects:
1. Although I could sleep and wake up early to go to office on time, there is a sleep debt.
2. Slightly increased stuttering
Update on 7 Jan 2021
1. I observed three things with respect to cold tolerance/intolerance. If I skip my breakfast, I feel more cold.
2. If I do simple walking for 30 minutes duration in night time around 8.30 pm when the temperature is around 15 - 18 deg C, I feel more warm. During the walking I wear sweater and after returning my house, I can wear only normal T-shirt for 1-2 hours where the room temperature is around 15 deg C.
3. After I eat food (lunch/dinner), within 15 minutes, I feel more cold.
The above observations indicate that my cold tolerance has some connection with my blood circulation. After eating, more blood flow is diverted to stomach and intestine area. Therefore, other areas of the body receive less blood flow. Less blood flow means less heat exchange and more cold intolerance. Exercise such as walking for 30 minutes improves blood flow to all parts of the body. More blood flow, more heat exchange and more warm feeling.
Therefore, I need to do appropriate exercises to improve my blood circulation to avoid cold intolerance.
Update on 23 Dec 2023:
Daily consumption of ginger tea, masala tea, multivitamin tablet (supradyn multivitamin), and daily elliptical training for 20 minutes increases cold tolerance.
