The same crash a thirty-year-old walks away from can end a life at eighty-four. Not because the collision was worse. Because the body meeting it was different.
The window closes first
Aging lengthens reaction time and slows threat detection, so the seconds a younger driver uses to brake are simply gone. That is worth remembering when a report says a driver failed to control speed. Sometimes the phrase describes a body's limits as much as a driver's choice.
Bone gives sooner
Reduced bone density means ribs and the sternum fracture at forces a younger skeleton shrugs off. Broken ribs are not a bruise at that age. They drive pain that shallows breathing, and shallow breathing invites pneumonia, and pneumonia is often what actually kills. In the trauma literature this is put plainly: in the elderly chest, physiology trumps anatomy.
The tank is smaller
Physiologic reserve, the body's spare capacity to survive a shock, shrinks with age. Thinner cardiac and vascular tissue tolerates less. A blood loss a young body compensates for sends an older one into a spiral, and medications common at that age can mask the warning signs until the fall is steep. Add a burn, and fluid loss finishes what the impact started. The geriatric-trauma literature is consistent: the same forces, very different outcomes.
The lesson
The other side will call an older client fragile, as if that were a discount on the harm. It is the opposite. The eggshell-plaintiff rule is old law for a reason. You take the person as you find them, thin skull and all. Age did not cause the crash. It set the price of it.
On age and injury tolerance, see Assessment and Management of Traumatic Injuries in Older Adults (StatPearls) and Rib fractures in the elderly: physiology trumps anatomy. This is general information, not medical or legal advice.
