Obviously, the cost to sequence a genome depends on its size. The discussion below is focused on the human genome; keep in mind that a single 'representative' copy of the human genome is ~3 billion bases in size, whereas a given person's actual (diploid) genome is ~6 billion bases in size.
Alternatively, EPA has a more beneficial effect on lowering overall LDL (bad) cholesterol. In the cognitive domain, DHA appears to offer greater mental benefits. DHA has been suggested to be more effective in improving overall cognition and preventing cognitive decline in healthy older adults.
Why we need it. 1  Omega-3 fatty acids like DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid) are essential for proper brain development and for overall health and growth.*. 2  DHA supports brain, retina, and nervous system development1, and studies suggest that DHA may improve reading and behavior in children2*.