As in design, a key concept in biology is “form
follows function”—this means that the physical
structures of your body reect their specic
tasks. Anatomy is the study of these body
structures and physiology is the study of their
functions, or how your body works.
Atoms are the building blocks of matter; cells are the
building blocks of biological life. Approximately 37
trillion body cells are vibrating in your body right
now. They create four basic tissue types and 11 organ
systems. All of these parts and pieces create an
integrated whole called the human body.
Telomeres are like caps on
the tips of chromosomes.
With aging, telomeres tend
to shorten. Studies on the
cutting edge of molecular
biology have shown that a
yogic lifestyle (including
asanas, meditation, social
support, and a plant-based
diet) seems to increase
telomere length, which may
have an impact on increased
longevity and health.
These chemical building blocks contain
protons, neutrons, and electrons. They
bond together to make important
molecules, such as water (H
Cells are the smallest unit of life.
Most cells contain a nucleus in the center,
cytoplasm, and an outer layer called the
cell membrane. Small functional units
inside the cell are called organelles.
Cells come together to form tissues, which
are like unique fabrics. This specically
shaped tissue is located in the liver.
in the nucleus
Liver cells are
consists of coiled
Telomeres on tips
A gene is a unit of DNA
in a cell nucleus—meditation
may prevent cellular aging
and harmful gene expression
DNA contains the
information a cell needs
to function and replicate
US_010-011_Cell_to_system.indd 10 05/12/2018 12:06