Answer: oxygen
Explanation:
The medical condition described here is anaemia. It is a blood cell disorder whereby the red blood cell doesn't function properly and hence doesn't carry enough oxygen to the tissues. This is usually caused when ones body is deficient of iron.
The symptoms that may occur to such patients are weakness, fatigue, headache and pale skin.
Based on the explanation, the answer is oxygen
The long term ill-ness one you would have had time to prepare for, but it doesn't make it any better. It just seems to not hurt as long. You'll be sad for a couple of days. The sudden unexpected one will tear you apart. You'll be shocked and for that you'll wonder, why them and how. You'll most likely be very sad for a long time.
Answer: what is the question? and how can i help my dad to stop smoking?