weigh in. Be weighed; also, be of a particular weight. For example, Because it was such a small plane, the passengers and their luggage had to weigh in before takeoff , or The fish weighed in at 18 pounds. [Late 1800s] See also: weigh.
Asthma and allergic diseases, such as allergic rhinitis (hay fever), food allergy, and atopic dermatitis (eczema), are common for all age groups in the United States.
The list of types of All Disease Categories mentioned in various sources includes: 1  Cancer. 2  Autoimmune conditions. 3  Diabetes. 4  Genetic conditions. 5  Chromosome conditions. 6  Viral infections. 7  Bacterial infections.