Lipid bilayers are really important for how cells send signals and how diseases develop.

These bilayers act like a special barrier. They control how signaling molecules, like hormones and neurotransmitters, interact with cells.

For example, when a hormone attaches to a receptor on the membrane, it can start a series of reactions inside the cell. This can change how the cell works.

Lipid bilayers are also linked to diseases. In conditions like atherosclerosis, changes in the types of fats can change how flexible the membrane is. This can mess up signaling pathways and lead to inflammation.

In cancer, problems with how fats are used in the body can help tumors grow and spread.

By understanding how these bilayers work, we can learn more about how to create better treatments and manage diseases.