sort by best latest
Basicly allergies are that the immune system of the body become hypersensitive and react to harmless substances such as dust or certain types of food etc. The reasons could be genetic or enviromental.
You can help the HubPages community highlight top quality content by ranking this answer up or down.
Allergies are genetic
Copyright © 2017 HubPages Inc. and respective owners. Other product and company names shown may be trademarks of their respective owners. HubPages® is a registered Service Mark of HubPages, Inc. HubPages and Hubbers (authors) may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others.
Copyright © 2017 HubPages Inc. and respective owners.