| Clue | Source | Date |
|---|---|---|
| Weaknesses | ||
| Low iron conditions | Universal | 19 Sep 2017 |
| Weak conditions | Jonesin | 08 Aug 2017 |
| Red blood cell deficiencies | Universal | 15 Apr 2017 |
| Low iron conditions | ||
| Red blood cell deficiencies | ||
| Low-iron conditions | USA Today | 01 Jan 2016 |
| Low-iron conditions | ||
| Red blood cell deficiencies | ||
| Paleness causes | ||
| Paleness causes | ||
| Causes of pallors | ||
| Causes of pallors | ||
| Deficiencies of red blood cells | ||
| Low energy states | ||
| Lacks of energy | ||
| Blood-cell deficiencies | ||
| Blood deficiencies | ||
| Low energy conditions |