Early hunter gathers had fewer communicable disease risks due to vastly lower population sizes.  So, for example they did not get the seasonal flue.  Consider, there was lot&#x27;s of EU to America disease spread, but almost nothing went the other way.  Despite the fact that south America had fairly large scale farming and population growth.<p>Excluding communicable diseases, most people stay fairly health until 50+ and many hunter gathers likely lived into there early 90&#x27;s.  Infection likely a major risk, but antibiotics are very recent and less necessary than frequently assumed.