While asthenia could be one of the first warning signs, it can also appear later during the condition.
Dr Tang said: “Asthenia is the most common symptom seen in advanced medical conditions. So, if you’re currently being treated for cancer, chances are you will experience asthenia as it is a common side effect.
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“It can be a symptom which arises from having difficulty with eating and digestion too.
“In the later stages of cancer, weakness may be exacerbated because it has spread to other parts of the body.”
Source: Daily Express