Does exercise make you acidic? The truth about your body's pH balance
                                
                                
                                •
                                
                                
                        
                                    
                                    5 min read                                
                            
                                During high-intensity exercise, a person's blood pH can temporarily drop from a healthy 7.4 to as low as 6.9, causing a burning sensation in muscles. While this temporary shift might sound alarming, it is a normal physiological response and not a sign that your body is becoming permanently acidic.