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.
When flying with United Airlines, you'll be allowed 1 carry-on bag, with maximum dimensions limited to 14 inches x 9 inches x 22 inches (23 x 35 x 56 cm). You can check the size at the airport by using one of metal bins at the check-in desk to measure your bags.