Solve these clues to fill the grid.
- Chemical agent capable of ___
- 1 Across
- Feeling of deep sadness that lasts a long time
- 3 Across
- Physical activity that keeps you fit
- 4 Across
- Abnormal loss of bony tissue resulting in fragile porous bones attributable to a lack of calcium
- 9 Across
- Moving on foot
- 10 Across
- The property of excessive fatness
- 13 Across
- A licensed medical practitioner
- 15 Across
- The act of swinging or striking at a ball with a club or racket or bat or cue or hand
- 16 Across
- An animal sterol that is normally synthesized by the liver
- 2 Down
- Food and nutrients the body needs to grow
- 5 Down
- Being very thin
- 6 Down
- Something that treats or prevents or alleviates the symptoms of disease
- 7 Down
- Parents, children and relatives who belong together
- 8 Down
- A monosaccharide sugar that has several forms
- 11 Down
- In good shape and not sick
- 12 Down
- Study of what happened in the past
- 14 Down