While many chairs that allow a sitter to assume the zero gravity position are decidedly designed for indoor use (the Herman-Miller Eames Chair comes readily to mind for many), there are plenty of zero gravity recliners that are specifically designed to be used outside.
3. Sea vegetables. Sea vegetables are rich in iodine. Iodine attaches to tyrosine (an amino acid) to form thyroxine. If you have insufficient levels of iodine, it becomes a rate-limiting step in the production of thyroid hormones and you'll inhibit your thyroid function.
Since iodine is an extremely important nutrient for the thyroid, you should eat your sea vegetables. Insufficient iodine levels can limit the production of thyroid hormones, which ultimately inhibits healthy thyroid function. The best sea vegetables to eat include spirulina, kelp, wakame, hijiki, or nori sheets. Brazil Nuts: