What is brain aging in dogs?
Just like the rest of the body, the brain is affected by the aging process. Damage to the brain’s cells can lead to changes in your dog’s behavior and alertness.
It's important to remember that aging is a natural part of your dog's life. Half of all dogs 8 years and older will show some signs of brain aging, and as your dog ages, he may begin to act differently. Thanks to advances in medicine and pet nutrition, the right dog food and veterinary advice can help limit the effects of brain aging and maintain your dog’s activity level.
What causes my dog’s brain to age?
Aging takes a toll on a dog's entire body, including his brain. In recent years, scientists have made great strides in understanding the aging process. Today, many experts agree that aging is primarily caused by unstable oxygen molecules called free radicals. As the brain ages, free radicals cause damage to the cells. Although some free radicals may be caused by the effects of environmental conditions, the majority are produced by the body’s own metabolism.
The aging process attacks all body systems and organs in a dog, including the brain. The result is a loss of brain function, and often, the appearance of behavioral changes that were not present in a dog’s younger years.
Why is the brain susceptible?
- High lipid content, a prime target for free radicals
- High demand for oxygen
- Limited antioxidant defense and repair capabilities
- Nervous System tissue is especially vulnerable to attack by free radicals.
 Healthy Older Brain |
 Older Brain with Damage |
| MRI scans show loss of brain tissue in affected dogs. Note: MRI scans are not harmful to dogs. |
|
Older, compromised mitochondria produce less energy and more highly toxic free radicals
- Mitochondria are a source of energy production within cells, but also produce highly toxic free radicals as a by-product
- As the brain ages, mitochondria produce an ever-increasing number of free radicals
- Damage caused by free radicals leads to reduced brain function and possible behavioral changes
Little can be done to stop free radicals from being produced. Antioxidants, vitamins and minerals have been found to counteract the damage caused by free radicals and may help maintain normal behavior for a long and healthy life.
 |
 |
Tasty Tips
Is my dog showing signs of brain aging?
Changes in brain function occur very slowly. The first thing you’ll notice may be small differences in behavior, such as increased sleeping, lack of energy or irritability. You may not notice these changes until they start to interfere with your dog’s everyday life. The following signs are commonly used by veterinarians in the diagnosis of brain aging.
- House-soiling accidents
- No longer "asks" to go outside
- Doesn't greet family members
- Does not want attention/petting
- Does not recognize familiar people or places
- Does not respond to verbal cues
- Sleeps more during the day or less at night
- Appears lost or confused in the house or yard
- Wanders or paces
- Stares into space or at walls
IMPORTANT:
If any of these signs are affecting your dog, discuss them with your veterinarian.
Treatment: The importance of nutrition
To keep your dog acting young and healthy, proper nutrition is important. As your dog ages, continue to feed him foods rich in antioxidants and essential nutrients to keep him active and alert. Older dogs can continue to have a high quality of life and the food your dog eats plays an important role in his overall health and well-being. Balanced nutrition is an essential part of an active, healthy lifestyle. For accurate diagnosis and treatment options, always consult your veterinarian and ask them to recommend the best food for your dog’s brain health.
Brain Aging Questions to Ask Your Veterinarian
- What kind of health risks do aging dogs have?
- Do older dogs need to visit the veterinarian more often?
- Do older dogs have special nutritional needs?
- Would a Hill’s® Prescription Diet® dog food help my aging dog’s brain?
- What if I have multiple dogs? Can I feed them all the same dog food?
- How can nutrition help with this condition? What is the benefit of feeding therapeutic nutrition as part of treatment which may include administering pills?
- What are the pros and cons of using nutrition to help manage my aging dog’s behavior and alertness?
- How long will I need to feed the recommended dog food to my dog?
- Ask how feeding a therapeutic dog food can help promote long-term benefits for my dog?
- What is the best way (email/phone) to reach you or your hospital if I have questions?
- Ask if you need a follow-up appointment.
- Ask if a reminder email or notice will be sent.
Related products
Hill's Science Diet Adult Perfect Weight Small & Mini Chicken Recipe dog food
Over 70% of dogs lost weight within 10 weeks when fed this nutrition
Hill's Science Diet Adult 7+ Chicken & Barley Entrée Dog Food
Chicken & Barley recipe with precisely balanced nutrition to support mobility and muscle mass for older dogs
Hill's Science Diet Adult Sensitive Stomach & Skin Grain Free Chicken & Potato Recipe dog food
Hill's Science Diet Sensitive Stomach & Skin Grain Free dry dog food is gentle on stomachs. Nourishes skin & promotes a lustrous coat.
Hill's Science Diet Adult Perfect Digestion Small & Mini Chicken & Vegetables Entrée Dog Food
Science Diet's breakthrough nutrition supports ultimate digestive well-being & healthy microbiome
Hill's Science Diet Adult No Corn, Wheat, Soy Savory Stew with Chicken & Zucchini Dog Food
Hill's Science Diet Adult 7+ Healthy Cuisine Hearty Beef, Carrots & Peas Stew Dog Food
Delicious braised beef paired with tender vegetables in a succulent stew
Hill's Science Diet Adult Healthy Cuisine Can Variety Pack
Hill's Science Diet Healthy Cuisine Variety Pack
Hill's Science Diet Adult Sensitive Stomach & Skin Tender Turkey & Rice Stew dog food
Supports digestive health, nourishes skin and promotes a lustrous coat
Hill's Science Diet Puppy Chicken & Rice Stew
Chicken & Rice Stew with great taste and precisely balanced nutrition to support 5 essential building blocks for lifelong health
null Hill's Science Diet Adult Healthy Cuisine Hearty Beef, Carrots & Peas Stew Dog Food
Delicious braised beef paired with tender vegetables in a succulent stew
Hill's Science Diet Adult 7+ Senior Vitality Small & Mini Chicken & Vegetable Stew Dog Food
Improves Everyday Ability to Get Up & Go
Hill's Science Diet Adult Sensitive Stomach & Skin Salmon & Vegetable Entrée Dog Food
Supports digestive health, nourishes skin and promotes a lustrous coat
null Hill's Science Diet Adult Sensitive Stomach & Skin Chicken Recipe Dog Food
Hill's Science Diet Sensitive Stomach & Skin dry dog food is gentle on stomachs while nourishing skin & promoting a lustrous coat.
Hill's Science Diet Adult Oral Care Small & Mini Chicken, Rice & Barley Recipe Dog Food
Clinically proven kibble technology to reduce plaque & tartar build-up, specially designed for small & mini dogs
Hill's Science Diet Adult Sensitive Stomach & Skin Small & Mini Chicken Recipe Dog Food
Hill's Science Diet Sensitive Stomach & Skin Small & Mini dry dog food is tailored nutrition for Small & Mini dogs while being gentle on stomachs. Nourishes skin & promotes a lustrous coat.
Hill's Science Diet Adult Small Bites Lamb Meal & Brown Rice Recipe Dog Food
Supports lean muscle, for dogs who prefer smaller kibble
Hill's Science Diet Adult 7+ Entrée Can Variety Pack Dog Food
Hill's Science Diet Adult 7+ Variety Pack
Hill's Science Diet Adult Small & Mini Savory Stew with Beef & Vegetables Dog Food
A delicious complement to the nutrition of Science Diet Small Paws dry dog food
Hill's Science Diet Adult Perfect Digestion Small & Mini Chicken & Brown Rice Recipe Dog Food
Science Diet's breakthrough nutrition supports ultimate digestive well-being & healthy microbiome
Hill's Science Diet Puppy Small Paws Chicken & Barley Entrée
Chicken & Barley recipe with great taste and precisely balanced nutrition to help your puppy build immunity and strong bones
Related articles
Dog Breeds That Can't Swim & Why
Learn why some dog breeds are not strong swimmers, which specific breeds might struggle in water, and water safety tips if you have one of those breeds.
Training Two Puppies: How to Succeed
Learn how to train two puppies at once with these tips. It's a challenging undertaking, but possible with hard work and love.
Teaching Your Dog to Fetch
Discover easy and effective methods for teaching your dog to play fetch, including commands to use and how rewards can help him learn the game.
Lumps on Your Dog: Common Types & What You Should Know
Learn about common types of lumps & bumps you might notice on your dog, tips for monitoring them over time and when they might become a health concern.
Tips to Prepare Your Home for a Puppy
Learn how to puppy-proof your home. Safety is critical when you adopt a new puppy, so learn how to make your home a safe-haven for your young canine.
Heartworms in Dogs: What You Need to Know
Learn the facts about what heartworms really are, symptoms & signs he might exhibit if he's infected, and treatment options to help him get rid of them.
Why Are My Dog's Eyes Red?
Learn common causes of red eyes in dogs, from normal allergies to more serious health concerns, and treatment options your vet might suggest to help.
Why Do Dogs Paws Smell Like Corn Chips?
You're not the only pet parent out there wondering, "Does My Dog Smell Like Corn Chips?" Learn why this is such a common smell your pup might give off.
Old Dog Syndrome: All About Vestibular Disease in Dogs
Learn about old dog syndrome, also called vestibular disease, which could be a reason your senior pup is having balance or dizziness issues.
Reducing Holiday Party Stress for Your Dog
Learn the best way to keep your dog comfortable & stress-free during a holiday party, including introducing him to guests & giving him a quiet place to res
Do Male Dogs Go Into Heat?
You probably know about female dogs going into heat, but do male dogs? Learn whether male dogs have a heat cycle & handling them around females in heat.
Albino Dogs: Understanding a Rare Condition
Are all dogs with white fur considered albino? Learn the characteristics of albino dogs, along with considerations if you're interested in adopting one.
Transportation and traveling
If you're planning on transporting or traveling with your puppy any time soon, you should consider following these helpful suggestions to keep them safe.
Five Most Intelligent Dog Breeds
Learn about the five smartest dog breeds, such as border collies, german shepherds and poodles, and what makes them so trainable and intelligent.
Velcro Dogs: Managing Your Dog's Clinginess
Velcro Dogs: Managing Your Dog's Clinginess
Dogs With Joint Problems Don't Have to Remain in Pain
Learn the common signs that a dog is having joint problems, how joint issues occur & why they can so painful for him, as well as how they can be treated.
My Dog Is Not Affectionate Toward Me — Help!
Much like humans, not all dogs show affection the same way. While some dogs may not be as outgoing as others, learn how you can still form a loving bond.
What Is the Cost of Owning a Dog?
You've made the emotional decision to get a dog, but have you crunched the numbers? The cost of owning a dog requires upfront funds to get started.
Key Tips to Keep Your Puppy Fit & Healthy
Keep your new puppy in great shape by following our healthy puppy tips, including information about exercise, nutrition, and eating habits.
5 Signs You Have a Spoiled Dog
Discover whether you might have a spoiled dog on your hands and learn alternative ways to show your pup that you love them.
Put your dog on a diet without them knowing
Our low calorie formula helps you control your dog's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
Put your dog on a diet without them knowing
Our low calorie formula helps you control your dog's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.