Biochemical indicators:

Such as certain enzymes, proteins or other molecules in the blood, these indicators will change during the aging process.

Gene markers:

Gene expression is related to aging. By analyzing the expression of these genes, the degree of aging of an individual can be assessed.

Cell functions:

For example, the ability of cells to divide, response to oxidative stress, etc.

Physiological and biochemical parameters:

For example, skin elasticity, memory ability, bone density, cholesterol levels.

Morphological assessment:

For example, observing the morphological changes of cells through a microscope.

Imaging evaluation:

For example, imaging techniques such as MRI and CT can be used to observe the degree of organ degeneration.

Clinical Assessment:

An assessment of an individual’s physical, cognitive, and motor functions.