Why do people go into comas?

People go into comas due to severe brain injury or illness that disrupts the brain's arousal system, often from trauma (like head injury, stroke, lack of oxygen), toxins (drugs, poisons, alcohol), metabolic issues (severe diabetes, kidney/liver failure), infections (meningitis, sepsis), or tumors, leading to prolonged unconsciousness because the brain's "on/off" switch for consciousness gets turned off or overwhelmed. A coma is a serious medical emergency requiring immediate attention.

What happens while you are in a coma?

In a coma, a person is in a deep, prolonged state of unconsciousness, unable to wake up, respond to commands, or feel pain, essentially living but unaware, with disrupted brain activity preventing normal processing of senses, though basic life functions like breathing and circulation often continue, sometimes needing support like ventilators. It's caused by brain injury, stroke, infection, or toxins, and involves disruption of brain networks, particularly the reticular activating system, leading to unresponsiveness. 

How long are you allowed to stay in a coma?

A coma's duration varies greatly, from hours to days, weeks, months, or even years, depending on the underlying cause and severity of brain injury, with most lasting a few weeks, but some prolonged cases extending for decades, like Elaine Esposito's record of over 37 years. While many recover consciousness, others transition to vegetative or minimally conscious states, or face poor outcomes, making recovery unpredictable. 

Is a coma the closest thing to death?

Brain death is not the same as coma

Brain death differs from other states of unconsciousness in important ways. For example, coma is similar to deep sleep, except that no amount of external stimuli can prompt the brain to become awake and alert. However, the person is alive and recovery is possible.

What are the main causes of a coma?

Common causes of coma include:

• Anoxic brain injury.
• Cerebral infarction.
• Cerebral hemorrhage. Spontaneous. Traumatic.
• Cerebral neoplasms.
• Hypertensive encephalopathy.
• Hypoglycemia.
• Metabolic encephalopathy.
• Myxedema.

What Happens in the Brain During a Coma?

Can you hear in a coma?

Yes, people in a coma can often hear, even if they can't respond, with studies showing brain activity when familiar voices are present, and some patients later recall hearing loved ones, suggesting that talking to them is beneficial and can aid recovery, as familiar sounds stimulate the brain. Hearing and comprehension are different, but auditory pathways often remain active, and familiar voices, music, or stories played to patients have been linked to faster healing and improved outcomes, making it important for families to communicate. 

How long will comas last?

A coma's duration varies widely, from a few days to months or even years, but typically lasts a few weeks, depending heavily on the cause and severity of the brain injury; some patients recover fully, others transition to vegetative or minimally conscious states, while some may not wake up, highlighting the unpredictable nature of recovery. 

Is the brain alive in a coma?

Someone who's in a coma is unconscious and has minimal brain activity. They're alive, but cannot be woken up and show no signs of being aware.

Is being in a coma like sleeping?

No, being in a coma isn't like normal sleeping; while a person in a coma looks like they're deeply asleep, they are in a prolonged state of unconsciousness, unable to wake up or respond to stimuli, including pain, and their brain activity is significantly different, lacking the regular cycles of sleep. A coma involves a serious brain issue, unlike sleep, where the brain cycles through stages, processes information, and dreams, whereas a comatose brain has reduced activity and doesn't experience normal sleep patterns.
 

How long in coma before death?

You can be in a coma from minutes to years, with most lasting a few weeks, but death is a risk, especially with severe injuries or illness, though some people recover fully, enter a vegetative state, or die, with recovery depending on the cause, severity, and duration of the coma. While severe oxygen deprivation (5-10 mins) is often fatal, some coma patients live for years, like Elaine Esposito who was in a coma for 37 years before dying. 

Do you eat while in a coma?

No, someone in a coma cannot eat or drink normally because they are unconscious and lack control of their muscles, so they receive all their nutrition and hydration through a feeding tube (like a nasogastric tube down the nose or a direct stomach tube) or an IV drip, not by mouth. This specialized delivery ensures they get essential fluids, calories, and nutrients to support their body while they're unable to swallow or chew.
 

Do you dream in a coma?

Yes, many people in comas, especially those emerging from them or in medically induced states, report vivid, dream-like experiences or hallucinations, though they aren't typical dreams as they lack normal sleep cycles and can blend with reality, often incorporating hospital surroundings, medications, or sensory input like ice packs. While a true, deep coma usually prevents normal dreaming, the brain can create intense internal worlds, sometimes as nightmares or elaborate narratives, as it tries to process stimuli or heal.
 

How does it feel to be in coma?

Being in a coma feels like nothing, as it's a state of deep unconsciousness, unawareness, and unresponsiveness, similar to a profound sleep where you can't feel pain, hear, see, or move voluntarily, though some basic reflexes and brain activity remain, and a few people report fleeting memories or dreams, but generally, it's a blank slate where you're simply not "there".
 

Is being in a coma serious?

Although many people gradually recover from a coma, others enter a persistent vegetative state or die. Some people who recover from a coma end up with major or minor disabilities. During a coma, bedsores, urinary tract infections, blood clots in the legs and other problems may develop.

What does your brain do while in a coma?

In a coma, the brain experiences significantly lowered activity, disrupting networks for awareness, causing unresponsiveness, and disconnecting it from sensory input, though basic functions like breathing might continue; this deep unconsciousness results from injury or illness affecting brain structures controlling arousal and awareness, leading to minimal to no voluntary movement or response to stimuli like pain or sound, with potential for long-term issues or recovery depending on the cause.
 

How is a person in a coma kept alive?

Coma patients are kept alive through intensive supportive care, primarily by managing breathing with ventilators, providing nutrition and fluids via feeding tubes (gastric tubes), and preventing complications like infections and bedsores through regular turning, skin care, and range-of-motion exercises, while treating the underlying cause of the coma (like brain swelling or bleeding) to stabilize the patient.
 

Can you cry while in a coma?

Yes, people in a coma or similar states (like vegetative or minimally conscious states) can sometimes cry, laugh, or make facial expressions, but these are often reflexive, automatic responses from lower brain centers, not necessarily a sign of conscious emotional understanding or voluntary action, though they can be distressing for family. While a person in a deep coma is unresponsive, these reflex-like emotional expressions can occur as the brain slowly begins to show reactions, sometimes in minimally conscious states where some awareness might be present.
 

Are you aware while in a coma?

In a true coma, a person is deeply unconscious, unaware, and unresponsive, appearing to be in a deep sleep but unable to be woken, but recent research shows some individuals thought to be in comas or vegetative states (disorders of consciousness) actually show brain activity indicating hidden awareness, meaning they might be conscious but unable to communicate. These patients can process information and might even feel sensations, a condition known as cognitive-motor dissociation, a surprising discovery that changes how we view these deep unconscious states, according to studies in The New England Journal of Medicine and Everyday Health*. 

Can you pass away while in a coma?

Yes, you can die in a coma, as it's a severe medical state with outcomes ranging from recovery to permanent vegetative states or death, often due to complications like infections, blood clots, or the underlying cause (like severe oxygen deprivation or stroke) leading to brain death, which is the irreversible cessation of all brain function.
 

What is the life expectancy of a person in a coma?

Someone can survive a coma from days to several years, though most last a few weeks, with recovery depending heavily on the cause and severity of brain injury; many eventually wake up, while others transition to a vegetative state, and some may never regain consciousness, highlighting the importance of intensive medical care for survival and managing complications. 

What are the final moments of life like?

The Last Stages of Life

• Withdrawal from the External World.
• Vision-like experiences.
• Loss of Appetite.
• Change in Bowel and Bladder Functions.
• Confusion, Restlessness, and Agitation.
• Changes in Breathing, Congestion in Lungs or Throat.
• Change in Skin Temperature and Color.
• Hospice Death.

Can someone in a coma become brain dead?

Patients in a coma might have brain stem responses, spontaneous breathing and/or non-purposeful motor responses. Coma has three possible outcomes: progression to brain death, recovery of consciousness, or evolution to a state of chronically depressed consciousness, such as a vegetative state.

What are the odds of surviving a coma?

In patients with a scale from 5 to 7, 53% will die or remain in a vegetative state, while 34% will have a moderate disability and/or good recovery. In patients with a Glasgow Coma Scale of 8 to 10, 27% will die or remain in a coma, while 68% will have a moderate disability and/or good recovery.

How do coma patients eat?

Coma patients cannot eat normally and receive nutrition through feeding tubes, delivering specially formulated liquid formula directly to their stomach or intestines via the nose (nasogastric/nasojejunal), or sometimes directly into the stomach through the abdominal wall (gastrostomy/PEG tube) for long-term feeding, bypassing chewing and swallowing. This process, called enteral nutrition, provides essential fluids, calories, protein, and vitamins, managed by dietitians, while intravenous (IV) fluids handle hydration and medications if needed.
 

What is waking up from a coma like?

Waking from a coma feels like emerging into extreme confusion, agitation, and disorientation, often with significant memory gaps (post-traumatic amnesia), where you might not recognize surroundings or people, and could experience restlessness, crying, or agitation before regaining clearer awareness, sometimes over days or months, with varied recovery. It's a gradual process of re-awareness, moving from minimal responses to more consistent but foggy consciousness, requiring time and therapy to heal and understand what happened.