To format a computer means that all your data will be lost. Your operating system, programs, emails, drivers, pictures, everything! All of the updates on your programs will be gone, infarct the every entire program will be gone.
This drop in TSH is an attempt to return circulating thyroid hormone levels to normal. So, a test to measure the amount of TSH in your system will usually show lower than normal TSH when the thyroid is overactive. So, in general, LOWER TSH = OVERACTIVE THYROID / HYPERTHYROIDISM.
No: There are no such foods such as that. If your TSH level is low, that means your thyroid is overproducing thyroid hormone and that could be a goiter or other thyroid disease-you definitely need that checked and treated. If your thyroid hormone is low, then your TSH would be high.