On Genetics:
Ive been training clients since 2010,
While genetics are real in how fast your body adapts to exercise, they also are too often used as an excuse
Everyone has equal control over their
Effort
Discipline
Focus
Planning
Lifestyle habits

At the same time, bad genetics is not a concrete scientific category
What constitutes bad? How do we define this?
A naturally skinny person may excel at endurance, and be terrible at building muscle and expressing maximal strength
Vice versa, the biggest and strongest...

Athletes would never be assessed by their endurance abilities.
Research has shown that people adaptive response to any kind of stimulus always follows a bell curve
Whether someone responds to low moderate high volumes of training
Whether someones resting HR is low or high

Whether someone experiences superlative improvements in strength or power or aerobic endurance versus minimal
All of this varies,
There is no universal exercise prescription that works equally well for all people at all times

Genetics do not make you unhealthy by default, your lifestyle does that, your actions do that
There is no on on earths whose "genetics" are somehow immune to exercise and a healthy diet
Using them as an excuse is a denial of personal responsibility