Breathing Difficulties and Overheating. Which dog breeds are the most at risk?
Which breeds are most affected by heat and what owners can do?
Certain dog breeds are particularly prone to breathing problems, overheating, and related health conditions. While many of these dogs are considered especially cute because of their appearance, specific physical traits can pose serious health risks — especially in hot weather or during physical activity.
We explain which breeds are most affected, why these problems occur, and what breeders as well as owners can do in practical terms.
Breathing difficulties: when normal breathing becomes a btrain
In some dog breeds, the airways are anatomically shortened or narrowed. The result is labored breathing, snoring, wheezing, and rapid exhaustion.
Typical signs include loud breathing or snorting, quick fatigue during exercise, breathing distress in heat or stressful situations, sleep disturbances, and in severe cases fainting. Even light physical activity can be a significant strain for affected dogs.
Overheating: an underestimated risk
Dogs regulate their body temperature primarily through panting. If breathing is restricted, temperature regulation becomes less effective.
It becomes particularly dangerous during summer heat, direct sun exposure, car rides, physical activity, or stressful situations. Affected dogs overheat much faster than other breeds, and heatstroke can be life-threatening.
Common associated health problems
In addition to breathing difficulties and heat sensitivity, affected dogs often experience further health limitations such as chronic respiratory diseases, cardiovascular strain, sleep disorders, reduced physical performance, and an increased need for surgical interventions to correct airway obstruction.
Many dogs require ongoing veterinary care or even corrective surgery during their lifetime.
Breeds most affected
Studies show that dogs with very short muzzles are particularly affected.
Highly at risk are Pugs, French Bulldogs, English Bulldogs, Pekingese, and Japanese Chins.
Moderately affected breeds include Shih Tzus, Boston Terriers, King Charles Spaniels, Brussels Griffons, and Dogue de Bordeaux.
Other brachycephalic breeds may also show breathing noises and increased sensitivity to heat.
Why does this happen?
The problem results from selective breeding for certain external characteristics, especially very short muzzles, round skull shapes, narrow nostrils, and compact body structures.
While these features may be visually desirable, they lead anatomically to narrowed airways. The internal structures such as the soft palate, nasal passages, and trachea do not remain proportionally functional. This creates a permanent mechanical restriction of airflow.
As the popularity of these breeds increases, demand rises — and with it, breeding pressure.
What can breeders do?
Responsible breeding plays a crucial role. Important measures include selecting parent animals with freer airways, avoiding extreme physical traits, conducting health tests before breeding, adjusting breed standards in favor of functional anatomy, and promoting genetic diversity.
In the long term, only a shift toward healthier, more functional body structures can reduce the risk.
What can owners do?
Dog owners also carry responsibility. It is important to research breeds carefully, choose reputable breeders, consistently avoid heat exposure, adjust activities to temperature conditions, use cooling aids when necessary, and seek early veterinary evaluation if breathing problems appear.
Especially during warmer periods, affected dogs should not be overexerted. Cooling support, shade, and sufficient water are essential.
Conclusion
Breathing difficulties, overheating, and chronic health conditions affect certain dog breeds significantly more often than others. The combination of anatomical characteristics and external factors such as heat can severely limit quality of life.
Education, responsible breeding, and conscious ownership are essential to reduce risks for affected dogs in the long term.
Sources
n-tv.de: Leiden durch Qualzucht – Diese Hunderassen trifft es — Article about respiratory diseases, overheating, and affected breeds
https://www.n-tv.de/wissen/Leiden-durch-Qualzucht-diese-Hunderassen-trifft-es-id30375584.html
PLOS ONE: Associations between brachycephalic obstructive airway syndrome and health problems in dogs — Scientific study on BOAS and related health impacts
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0340604
