
hypoxia-inducible factors (HIF)
Hypoxia-inducible factors (HIFs) are proteins that help our body respond to low oxygen conditions. When oxygen levels drop, HIFs activate genes that improve oxygen delivery and usage, such as increasing red blood cell production or forming new blood vessels. They act as sensors, ensuring cells can adapt to oxygen shortages, which is crucial in situations like high altitudes, wound healing, or certain diseases. In essence, HIFs are vital regulators that help cells survive and function properly when oxygen supply is limited.