Your body uses vitamin D for maintaining healthy bones and effectively absorbing calcium. Not having enough vitamin D in your system may raise your risk of osteoporosis, bone malformations, cancer, inflammation and suppressed immunity. A simple blood test can give you accurate results and help you determine if your vitamin D levels are in the healthy range.
Delta Airlines requires that the make-up bag or carry-on luggage must not exceed 45 linear inches, with a maximum size of 22 inches in length, 14 inches in width and 9 inches in height.
Each airline sets its own weight restrictions, but domestic carriers such as Delta and U.S. Airways allow carry-on luggage that weighs up to 40 pounds. There are other size restrictions to pay attention to. The overhead bins and space under the seats will not accommodate baggage that is too large.