Ignition is usually the easiest of the three to check because on most engines, all you have to do is pull off a plug wire and check for spark when the engine is cranked. On coil-over-plug DIS systems, there are no plug wires so you have to remove a coil and use a plug wire or adapter to check for a spark.
Stress can affect every part of your body. muscle aches, head aches, how your hair grows, the texture of your skin, it can affect your menstrual cycle.
Called âthe stress hormone,â cortisol influences, regulates or modulates many of the changes that occur in the body in response to stress including, but not limited to: 1  Blood sugar (glucose) levels. 2  Fat, protein and carbohydrate metabolism to maintain blood glucose (gluconeogenesis)  Immune responses.