| mastery(noun, strength, ability, skill, capacity) |
| power(noun, strength, ability, skill, capacity) |
| qualification(noun, strength, ability, skill, capacity) |
| stature(noun, strength, ability, skill, capacity) |
| vitality(noun, course, life, age, existence) |
| what it takes(expression, strength, ability, skill, capacity) |
| biology(noun, time, life, period) |
| cell biology(expression, time, life, period) |
| expectation of life(expression, life, age, life course, existance) |
| following this(expression, time, life, period) |
| guts(noun, life, age, strength, ability) |
| life's duration(expression, life, age, life course, existance) |
| life span(expression, life, age, life course, existance) |
| time travel(expression, time, life, period) |
| active ageing(expression, life, age, life course) |
| advanced age(expression, time, life, period) |
| counterculture(noun, time, life, period) |
| decline of life(expression, time, life, period) |
| declining years(expression, time, life, period) |
| distance of time(expression, time, life, period) |